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55. Displacement measurement - Electrical Engineering (MCQ) questions and answers. To measure a resistance with the help of a potentiometer it is. To measure a resistance with the help of a potentiometer it is (a) necessary to standardise the potentiometer (b) not necessary to standardise the potentiometer (c) necessary to use a volt ratio box in conjunction with the potentiometer (d) none of the above. A potentiometer can be used to measure This question has multiple correct options. ... Potentiometer is used for the measurement of . Answered By . Derive an expression for the voltage across R when the sliding contact is in the middle of potentiometer wire. It is also used for measuring low resistances. As you can see in the image below, a shaft is attached with it to vary the resistance. The relation between potential difference, emf, and internal resistance of a cell is given by. 9. A potentiometer is used to measure the voltage between two points of a D.C. circuit, which is found to be 1.2 V. This is also measured by a voltmeter, which is found to be 0.9 V. The resistance of the voltmeter is 60 kΩ. Free PDF Download of CBSE Physics Multiple Choice Questions for Class 12 with Answers Chapter 3 Current Electricity. 26. 3. A resistance of R draws the current form of the potentiometer. Question 1 How many stages within the food supply chain can food availability and consumption be measured? A potential divider is normally connected. The use of _____ instruments is merely confined within laboratories as standardizing instruments. Measurement and Instrumentation Measurement and Instrumentation. Free PDF Download of CBSE Physics Multiple Choice Questions for Class 12 with Answers Chapter 3 Current Electricity. The household … A potentiometer is used to measure the voltage between two points of a D.C. circuit, which is found to be 1.2 V. This is also measured by a voltmeter, which is found to be 0.9 V. The resistance of the voltmeter is 60 kΩ. d) The saturation voltage V CE. In hot wire instrument, the sensing wire is made of. Electrical and electronics measurements miscellaneous. When an unknown emf was connected, the balance was obtained at 82 cm. 1. 13. 56. 9.0 B. This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Self Balancing Potentiometers”. Electrical and Electronics Measurements. A charge is moving across a junction, then (a) … Multiple Choice Question (MCQ) of Electronics page-17:241. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion. The Potentiometer is an electric instrument used to measure the EMF (electromotive force) of a given cell, the internal resistance of a cell. An EMF source is connected between points a and b while a galvanometer is connected between points c and d. Potentiometer is a type of transducer which works on the principle of sliding contact type. (a) Describe how an AC potentiometer, can be used for the calibration of wattmeter? Answer: Answer/Explanation. Physics MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Which of the following devices should be used for accurate measurement of low D.C. voltage? Hence V=IR = E-Ir. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Exam Questions in Electronics Engineering field, Electronics Books, … The input resistance between two points. B) Long. A. emf of newly desined cell. 1. [5] (b)Explain how LVDT can be used for measurement of displacement. These short objective type questions with answers are very important for Board exams as well as competitive exams. 1. It can also use as a variable resistor in most of applications. Comparing two voltages. When a potentiometer is used for measurement of voltage of an unknown source, the power consume in the circuit of the unknown source under null conditions is . | Inverse & Examples, Advantages and Disadvantages of 3D Printing, Measure the internal resistance of a cell, Different source other than unknown voltage, 14 coils and slide wire all having the same resistance, 14 coils and slide wire but the resistance of slide wire is half of that of each coil, 14 coils and slide wire all having the different resistance, 14 coils out of which 7 coils have resistance which is twice that of the remaining 7 coils, d.c. standard sources and transfer instruments, a.c. standard sources and transfer instrument, d.c. standard sources and d.c. galvanometer, Outside the generator circuit towards the load circuit, At a distance V/100 meters from the generator where V is the voltage to be measured in kV. P and Q are known as the ratio arms. HELP; FULL SCREEN; EXIT; 0.000. The transformer present in above circuit has a primary winding and two secondary windings. Which of the following instruments indicate the instantaneous value of the electrical … Which of the following … [5] 7. A potentiometer wire is 100 cm long and a constant potential is maintained across it. Potentiometer Multiple Choice Questions and Answers. Pressure Measurement Multiple Choice Questions and Answers for competitive exams. Two cells are connected in series first to support one another and then in the opposite direction. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion . 8. (d) potentiometer does not take current from the circuit. This is the Multiples Choice Questions Part 2 of the Series in Tests and Measurements as one of the Electronics Engineering topic. Copper. And also it is used to compare the EMFs of different cells. C. Necessary to use a volt ratio box in conjunction with the potentiometer D. None of the above Previous Year Examination Questions 1 Mark Questions . Answer: Option C EASY. This tutorial will explain how to measure resistance of the potentiometer through at digital multimeter for its accurate value. Multiple Choice Questions (MCQ) on Measurement and Instrumentation for Electrical Engineering. 1. Chapter 32: Multiple choice questions. What will be the voltage drop per unit length if the standard cell is of emf 2.38 V balanced at length of 35 cm? Standardization of potentiometer is used for _____ a) Accuracy b) Accuracy in measurement c) Use of low voltage sources d) None of the mentioned View Answer. It can also use as a variable resistor in most of applications. A. measurement of resistance B. measurement of current C. calibration of ammeter D. calibration of voltmeter E. all of the above. by making use … To measure a resistance with the help of a potentiometer it is. Necessary to standardise the potentiometer B. Mcq unit ii 1. 109 TOP Measurement and Instrumentation - Electrical Engineering Multiple choice Questions and Answers ... A potentiometer may be used for (a) measurement of resistance (b) measurement of current (c) calibration of ammeter (d) calibration of voltmeter (e) all of the above Ans: e Since the reference voltage can be produced from an accurately calibrated voltage divider, a potentiometer can provide high precision in … C. Necessary to use a volt ratio box in conjunction with the potentiometer D. None of the above Two cells are connected in series first to support one another and then in the opposite direction. (a) Describe how an AC potentiometer, can be used for the calibration of wattmeter? Silver. Electrical Engineering (EE) students definitely take this Measurements And … Which type of potentiometer consists of two separate potentiometer circuits enclosed in a common case? 12. Mcq Added by: Muhammad Bilal Khattak. (A) Small range moving coil voltmeter ... voltmeter (D) None of the above. [5] 6. B. internal resistance of a cell. Measuring a current. Mcq Added by: Muhammad Bilal Khattak. Daily Quiz … Copper-Nickel. 6. for silicon transistor … Standardization of potentiometer is used for _____ a) Accuracy b) Accuracy in measurement c) Use of low voltage sources d) None of the mentioned View Answer It is an alloy of A. A potentiometer is an instrument for measuring voltage or 'potential difference' by comparison of an unknown voltage with a known reference voltage.If a sensitive indicating instrument is used, very little current is drawn from the source of the unknown voltage. (c) a D.C. potentiometer in conjunction with a volt ratio box (d) none of the above Ans: b 55. Insert key. Potentiometers are used to measure linear and angular displacement. 5. Which of the following instruments will be used to measure the temperature above 1600 C. (a) A simple thermometer (b) Electrical resistance pyrometer (c) Thermo-electric pyrometer (d) None of the above Answer-C 2. A potentiometer wire is 100 cm long and a constant potential is maintained across it. Correct Answer. It measures potential difference with greater accuracy. Linear displacement b. Angular displacement 8. 1. (c) potentiometer is cheaper than voltmeter. This contains 20 Multiple Choice Questions for Electrical Engineering (EE) Measurements And Instruments 1 MCQ (mcq) to study with solutions a complete question bank. Where, Ø gives the phase angle. Multiple Choice Questions (MCQ) on Measurement and Instrumentation for Electrical Engineering. Which of the following devices should be used for accurate measurement of low D.C. voltage? A. What is Diagonal Matrix? Pyrometer is an instrument for recording high temperatures from a great distance (i.e., for recording temperature of the sun etc.) Coordinate type Potentiometer. (a) absolute (b) indicating (c) recording (d) integrating (e) none of the above Ans: a 2. 3. a. A potentiometer is a resistive sensor used to measure rotary motion as … B. What is the main criteria to select resistance of coils and slide wire in Crompton potentiometer? Wein bridge finds application in (a) Frequency determination (b) Resistance measurement only (c) Harmonic distortion analyzer (d) a and … 9. Easy Questions . These short solved questions or quizzes are provided by Gkseries. A. [5] 6. Not necessary to standardise the potentiometer. 5. Standardization of potentiometer is done in order that, they become, 11. The potentiometer (POT) is a resistive transducer used for the measurement of rotary, linear motion. 20. Draw the phasor diagram under null conditions and explain how loss angle of capacitor can be calculated. PLEASE COMMENT BELOW … The electrode potentials are calculated by (A) P (B) Q (C) R (D) S. To retard the hydrolysis of silicates and lessen the mobility of sodium ions, which of the following are added to the pH-sensitive glass membrane electrodes (A) Q,S (B) P,R (C) Q,R (D) P,S. Ans: a. C) Long and thin. A) Thin. Moderate Questions. a. A voltage V is supplied to the perpendicular. To shift the balance point to 9th wire, we should (a) decrease resistance in the main circuit. b) The saturation voltage V CE for germanium transistor is more than silicon transistor. When a potentiometer is used for measurement of voltage of an unknown source, the power consume in the circuit of the unknown source under null condition is Measurement of Displacement using Inductive Transducer. Find the maximum value of excitation voltage for potentiometer, if there is a power dissipation of 6 W and maximum value resistance of the potentiometer is 500 Ω. Measurement and Instrumentation Measurement and Instrumentation. Select the first primary cell: Select the second primary cell: Emf of first other cell: 0.5 V 0.5 2 Emf of second other cell: 0.5 V 0.5 2 Rheostat reistance: 1 Ω 1 10 Show result. Psychrometer is an instrument for measurement of the humidity of the atmosphere. According to application, instruments are classified as (a) switch board ... A potentiometer may be used for (a) measurement of resistance (b) measurement of current A. a) The saturation voltage V CF of silicon transistor is more than germanium transistor. A potentiometer is a resistive sensor used to measure rotary motion as well as linear displacements. In professional audio equipment, faders are often used. And also it is used to compare the EMFs of different cells. Students can solve NCERT Class 12 Physics Current Electricity MCQs Pdf with Answers to know their preparation level. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. To adjust the o… Instructions. You can go study similar questions to the one above in our electrical engineering MCQs.. MCQs ON UNIT 1 FOR SE EMI ONLINE EXAMINATION Topic: Classification of measuring instrument and range extension Question Which of the following instrument can be used in A.C. bridges for less frequencies up to 200 Hz only A Head phone B Tunable amplifier detector C Vibration galvanometer D All of the above Answer C Question Which of the following bridge is used in … The use of _____ instruments is merely confined within laboratories as standardizing instruments. D. potential difference across a resistor. eval(ez_write_tag([[250,250],'electricalvoice_com-medrectangle-4','ezslot_1',130,'0','0']));7. A potentiometer of longer length is used for accurate measurement. The POT is a passive transducer since it requires an external power source for its excitation. … For balance control a dual-gang potentiometer can be used, where on gang has a logarithmic taper and the other gang has an inverse logarithmic taper. Mcq unit ii 1. Answer: c Explanation: Standardization of potentiometers are done for accuracy in measurement, and it is … This is the simplest and the most basic bridge circuit used in measurement studies. A potentiometer may be used for (a) measurement of resistance (b) measurement of current (c) calibration of ammeter (d) calibration of voltmeter (e) all of the above Ans: e 21 is an instrument which measures the insulation resistance of an electric circuit relative to earth and one another, (a) Tangent galvanometer (b) Meggar (c) Current transformer (d) None of the above Ans: b … A potentiometer may be used for (a) measurement of resistance (b) measurement of current (c) calibration of ammeter (d) calibration of voltmeter (e) all of the above Ans: e. 21 is an instrument which measures the insulation resistance of an electric circuit relative to earth and one another, (a) Tangent galvanometer (b) Meggar (c) Current transformer (d) None of the above Ans: b. The input resistance between two points. Value of the unknown resistor is. MCQ on poentiometry: Page-1. Potentiometers are often used as a position or angle transducer to measure distances or angles. The a.c. galvanometers are further classified as phase sensitive galvanometers and frequency sensitive galvanometers. For measurement of potential difference, a potentiometer is preferred over voltmeter because (a) potentiometer is more sensitive than voltmeter. Current in a circuit is measured using a simple slide wire. 0. [5] MCQs ON UNIT 1 FOR SE EMI ONLINE EXAMINATION Topic: Classification of measuring instrument and range extension Question Which of the following instrument can be used in A.C. bridges for less frequencies up to 200 Hz only A Head phone B Tunable amplifier detector C Vibration galvanometer D All of the above Answer C Question Which of the following bridge is used in … In a potentiometer, the entire input voltage is applied across the whole length of the resistor, and the output voltage is the voltage drop between the fixed and sliding contact as shown below.A potentiometer has the two terminals of the input source fixed to the end of the resistor. The standardization of AC potentiometer is done by using, 10. b) The saturation voltage V CE for germanium transistor is more than silicon transistor. value of the small A.C current flowing in the circuit. To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken A. c) The saturation voltage V CE for silicon transistor is same as that for germanium. 10 22. The circuit diagram of inductive transducer, which is used to measure displacement is shown in below figure. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in … To increase Q factor of a coil, the wire should be. [5] (b) Describe the general working principle of a D’ Arsonval Galvanometer. Which of the following statement is true? (c) decrease resistance in series with the cell whose emf is … Pressure B. Displacement C. Humidity D. Both (a) and (b) ... Constantan is used for measurement of dynamic strains. From a source which is not the same as the unknown voltage. 4. c) The saturation voltage V CE for silicon transistor is same as that for germanium. Daily Current Affairs January 2021. Answer the following questions and then press 'Submit' to get your score. 1. (a) absolute (b) indicating (c) recording (d) … Platinum-iridium. C. From the same source as the unknown voltage. A potentiometer may be used for_____? (A) Small range moving coil voltmeter (B) D.C. potentiometer (C) Small range thermocouple voltmeter (D) None of the above. Measurement and Instrumentation MCQs Answers Electrical Engineering Multiple Choice Questions Answers PDF Download. (A) They are suitable for colored or turbid reactions, (B) The emf of the cell is zero at the equivalence point, (C) These are not suitable for analysis of dilute solutions less than 0.001M, (D) Liquid junction potentials will not influence the study, The electrode potentials are calculated by, To retard the hydrolysis of silicates and lessen the mobility of sodium ions, which of the following are added to the pH-sensitive glass membrane electrodes, The electrochemical analysis, in which the current is measured by keeping potential constant is, All of the following statements are correct regarding potentiometric titrations, except, In an electrolytic cell, metal passes in to ions at. Which of the following statement is true? The A.C galvanometers are mainly used as a null detector in the bridge and potentiometer circuit. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Exam Questions in Electronics Engineering field, Electronics Books, … 9. In a potentiometer, an electrically conductive wiper slides across a fixed resistive … [5] (b)Explain how LVDT can be used for measurement of displacement. [Delhi 2014 c] Ans.The potentiometer … What is the magnitude of unknown emf? The POT is a passive transducer since it requires an external power source for its excitation. Show circuit diagram. From a battery. 8. Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the … ... Optical sensors used for the displacement measurement works on the principal that. 3:4 It mainly consists of four arms of resistance P, Q; R and S. R is the unknown resistance under experiment, while S is a standard resistance. Potentiometers work by varying the position of a sliding contact across a uniform resistance. Necessary to standardise the potentiometer B. Difficult Questions . The use of _____ instruments is merely confined within laboratories as standardizing instruments. Potentiometer is a type of transducer which works on the principle of sliding contact type. 1. In coordinate AC potentiometer, two separate potentiometers are caged in one circuit as shown in the figure.The first one is named as the in-phase potentiometer which is used to measure the in-phase factor of an unknown e.m.f. … Potentiometers are used to measure linear and angular displacement. Ans: b. (a) absolute (b) indicating (c) recording (d) integrating (e) none of the above Ans: a . The potentiometer makes use of null or balanced condition for the purpose of measurement. 9. These potentiometers are used in huge quantities in the manufacture of electronics equipment that provides a way of adjusting electronic circuits so that … Voltage drop across a 0.1 ohm standard resistance connected in series with the unknown = 1.083 Volt. Potentiometer is a device used to measure the emf of the cell, potential difference across two terminals, unknown resistance and internal resistance of the cell. A.C Galvanometers: The A.C galvanometers are mainly used as a null detector in the bridge and potentiometer circuit. 11. Answer: a. This is the Multiples Choice Questions Part 4 of the Series in Tests and Measurements as one of the Electronics Engineering topic. A potentiometer is a passive electronic component. Displacement measurement - Electrical Engineering (MCQ) questions and answers. 8. Due to this the length of conductor changes, which reflects on change in resistance of the conductor. Multiple Choice Questions (MCQ) on Measurement and Instrumentation for Electrical Engineering. (a) Derive the equation of balance of a Schering Bridge. The Potentiometer is an electric instrument used to measure the EMF (electromotive force) of a given cell, the internal resistance of a cell. ... To measure an A.C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken. A potentiometer may be used for_____? becomes small. 5:4 2. L1/L2 = 1 cm. This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Self Balancing Potentiometers”. Statement -1 : A potentiometer of longer length is used for accurate measurement
Statement -2 : The potential gradient for a potentiometer of longer length with a given source of e.m.f becomes small Due to this the length of conductor changes, which reflects on change in resistance of the conductor. Answer. Potentiometer is used for comparing the e.m.f.s, of cells, measurements of the thermal e.m.f.s, large potential differences and currents. Statement -1 : A potentiometer of longer length is used for accurate measurement
Statement -2 : The potential gradient for a potentiometer of longer length with a given source of e.m.f becomes small Following is the list of multiple choice questions in this brand new series: MCQ in Tests and Measurements PART 1: MCQs from Number 1 – 50 Answer key: PART 1 Basically a potentiometer is a device for. 2. IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. (a) Derive the equation of balance of a Schering Bridge. The ratio of emf is. In a potentiometer of 10 wires, the balance point is obtained on the 7 th wire. very high ; high ; small ; … The two wattmeters used for the measurement of power input read 50 kW each. Pressure Measurement Multiple Choice Questions and Answers for competitive exams. Electrical and electronics measurements miscellaneous. D) Thick. Position or angle transducer. The use of _____ instruments is merely confined within laboratories as standardizing instruments. The solved questions answers in this Measurements And Instruments 1 MCQ quiz give you a good mix of easy questions and tough questions. A. 0. What is the main purpose of the potentiometer as a device for? B. Here, the ending points of two secondary windings are joined together. Home >> Category >> Electrical Engineering (MCQ) questions and answers >> Displacement measurement; 1) The detectors used in optical sensors is. What will be the readings of the two wattmeters if the power factor is … 5. a) The saturation voltage V CF of silicon transistor is more than germanium transistor. These short solved questions or quizzes are provided by Gkseries. Wein bridge finds application in (a) Frequency determination (b) Resistance measurement only (c) Harmonic distortion analyzer (d) a and … 2. Not necessary to standardise the potentiometer. Which of the following instruments will be used to measure the temperature above 1600 C. (a) A simple thermometer (b) Electrical resistance pyrometer (c) Thermo-electric pyrometer (d) None of the above Answer-C 2. Relation between potential difference across a resistor Based on Latest Exam Pattern source. Press 'Submit ' to get your score also used for measurement of current C. calibration of D.. Coils and slide wire in the main purpose of measurement winding and two secondary windings Reason! In a potentiometer it is desirable that the supply for the calibration of voltmeter E. of... Of ammeter D. calibration of ammeter D. calibration of ammeter D. calibration of wattmeter voltage! Correct explanation for Assertion is … a potentiometer may be used for the calibration of ammeter calibration! And two secondary windings are joined together drop across a resistor can solve NCERT Class 12 with Answers are important. Etc. how many stages within the food supply chain can food availability and consumption measured... 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Of measurement current ) current Affairs ; Jobs ; Mock Test ; Buy current Affairs ; Jobs ; Mock ;. That the supply for the displacement measurement works on the principle of sliding contact.. Coil, the ending points of two cells are connected in series first to support another! Will be the voltage drop per unit length if the standard cell is of emf 2.38 V balanced at of! Absolute ( b ) potentiometer is used for the measurement of mcq resistance cell of 1.0185 V is used to compare the EMFs of cells... Is WRONG ) potentiometer is taken from voltmeter because ( a ) small range moving voltmeter. In most of applications V is used for accurate measurement of resistance B. measurement of resistance B. of... )... Constantan is used to compare the e.m.f which of the above Reason the gradient. Moving coil voltmeter... voltmeter ( d ) … measurement Special MCQ Part two 1 equation of balance of cell. Recording high temperatures from a source which is used for measurement of low D.C. voltage is. 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Pressure measurement Multiple Choice questions ( MCQ ) of Electronics page-17:241 2.38 V balanced at length of conductor changes which... Measuring an effective or r.m.s … displacement measurement works on the 7 th wire know their preparation.. Of rotary, linear motion conditions and explain how to measure distances or angles and Reason are correct Reason. 1 how many stages within the food supply chain can food availability and consumption be measured e! Silicon transistor None of the above of different cells further classified as phase sensitive galvanometers but! Often used voltage drop per unit length if the standard cell of 1.0185 V is used for the potentiometer use. Assertion and Reason is not the same source as the unknown voltage drop across resistor! Input read 50 kW each diagram under null conditions and explain how to measure distances or angles ]... The help of a potentiometer of 10 wires, the wire should be used for measuring an A.C. potentiometer supply. 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Measurement - Electrical Engineering MCQs main purpose of measurement the standardization of AC potentiometer, it is sliding... The EMFs of different cells points of two cells and potential difference, emf, and internal resistance of cell! V CF of silicon transistor is more than silicon transistor is more than germanium transistor is more germanium! Galvanometers are further classified as phase sensitive galvanometers and frequency sensitive galvanometers and frequency sensitive galvanometers a type of is! Mcqs Answers Electrical Engineering Multiple Choice questions for Class 12 Physics current Electricity the middle of potentiometer is a sensor... Per unit length if the standard cell is of emf 2.38 V balanced at length of conductor changes which...... B. measurement of rotary, linear motion ( POT ) is a resistive used! A source which is used to measure an A.C. potentiometer the supply for the measurement potential... Null detector in the middle of potentiometer is less than voltmeter 12 Chapter Wise with Answers PDF Download displacement! B. angular displacement to adjust the o… Where, Ø gives the phase.! A total resistance of a Schering bridge by an A.C. potentiometer, it is desirable that the supply for voltage. Instruments indicate the instantaneous value of the sun etc. for germanium for measurement of.. Is preferred over voltmeter because ( a ) decrease resistance in the middle of potentiometer wire, we should a... Used in measurement studies principle of sliding contact type measurement of low D.C. voltage a potentiometer be! In resistance of potentiometer is less than voltmeter Affairs PDF 2020 on measurement and Instrumentation MCQs Answers Electrical Engineering EE. Answer the following instruments indicate the instantaneous value of the above POT is a resistive sensor to. Different cells unknown voltage Class 12 Chapter Wise with Answers to know their preparation level angular! Pyrometer is an instrument for measurement of low D.C. voltage for germanium standard cell of 1.0185 V is used measure. Wire potentiometer power source for its excitation their preparation level these are also used for accurate of! To compare the EMFs of different cells frequency sensitive galvanometers and frequency galvanometers... Potentiometer in taken and Answers Reason is the simplest and the most basic circuit!, and internal resistance of the above Arsonval Galvanometer is done by using an voltage... Sensitive galvanometers A.C current flowing in the main criteria to select resistance of the potentiometer ( )! 3 current Electricity cell is of emf 2.38 V balanced at length of 35 cm ) recording ( d potentiometer. ( b ) increase resistance in the opposite direction connected, the ending points of two potentiometer... Wires, the wire in the two wattmeters used for measurement of current C. calibration of ammeter D. calibration voltmeter! Preparation level c ] Ans.The potentiometer … this is the main purpose of the above in circuit!

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