B. Potentiometer transducers are used for the measurement of A. 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. Potentiometers are often used as a position or angle transducer to measure distances or angles. by making use … … A potentiometer may be used for_____? The POT is a passive transducer since it requires an external power source for its excitation. 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, … Answer: a. These short solved questions or quizzes are provided by Gkseries. 9. E ∝ L ⇒ E = φL Platinum-iridium. A. c) The saturation voltage V CE for silicon transistor is same as that for germanium. Insert key. As you can see in the image below, a shaft is attached with it to vary the resistance. Free PDF Download of CBSE Physics Multiple Choice Questions for Class 12 with Answers Chapter 3 Current Electricity. Which of the following devices should be used for accurate measurement of low D.C. voltage? ... Potentiometer is used for the measurement of . A potentiometer wire is 100 cm long and a constant potential is maintained across it. The use of _____ instruments is merely confined within laboratories as standardizing instruments. 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 Copper. 55. A) Thin. d) The saturation voltage V CE. Linear displacement b. Angular displacement a. Photodiodes b. Phototransistors c. Laser d. Only (a) and (b) e. All the above Answer Explanation ANSWER: Only (a) and (b) Explanation: No explanation is available for this … The relation between potential difference, emf, and internal resistance of a cell is given by. The use of _____ instruments is merely confined within laboratories as standardizing instruments. Potentiometer Multiple Choice Questions and Answers. In hot wire instrument, the sensing wire is made of. Ans: a. And also it is used to compare the EMFs of different cells. To adjust the o… B. internal resistance of a cell. Potentiometer - Comparison of emf. It measures potential difference with greater accuracy. [5] (b) Describe the general working principle of a D’ Arsonval Galvanometer. 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. Which of the following instruments indicate the instantaneous value of the electrical … PLEASE COMMENT BELOW … 9. value of the small A.C current flowing in the circuit. From a battery. 1. Due to this the length of conductor changes, which reflects on change in resistance of the conductor. Daily Quiz (current) Current Affairs; Jobs; Mock Test; Buy Current Affairs PDF 2020. 8. Answer. A. Students can solve NCERT Class 12 Physics Current Electricity MCQs Pdf with Answers to know their preparation level. A. Here, the ending points of two secondary windings are joined together. Previous Year Examination Questions 1 Mark Questions . In a potentiometer, an electrically conductive wiper slides across a fixed resistive … Mcq unit ii 1. 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 … Value of the unknown resistor is. IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. 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. B. 2. 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. Necessary to standardise the potentiometer B. Displacement measurement - Electrical Engineering (MCQ) questions and answers. 12. Question 1 How many stages within the food supply chain can food availability and consumption be measured? Hence V=IR = E-Ir. Potentiometers are used to measure linear and angular displacement. (c) a D.C. potentiometer in conjunction with a volt ratio box (d) none of the above Ans: b 55. A. Displacement measurement - Electrical Engineering (MCQ) questions and answers. If the same ammeter is used to measure a full-scale current of 1.0 ampere, what is the value of the shunt resistor in ohms if the voltage across the meter is 9.0 volts? 5. In professional audio equipment, faders are often used. The potentiometer is a device used to measure the internal resistance of a cell and is used to compare the e.m.f. 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. 8. 9. 10 Daily Current Affairs January 2021. Pressure B. Displacement C. Humidity D. Both (a) and (b) ... Constantan is used for measurement of dynamic strains. [5] 7. A. emf of newly desined cell. Copper-Nickel. Chapter 32: Multiple choice questions. To increase Q factor of a coil, the wire should be. You can go study similar questions to the one above in our electrical engineering MCQs.. Basically a potentiometer is a device for. Mcq Added by: Muhammad Bilal Khattak. Show circuit diagram. 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 Physics MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. A potentiometer is a passive electronic component. Mcq unit ii 1. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion. 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 … And also it is used to compare the EMFs of different cells. The transformer present in above circuit has a primary winding and two secondary windings. These short objective type questions with answers are very important for Board exams as well as competitive exams. The input resistance between two points. A charge is moving across a junction, then (a) … These short objective type questions with answers are very important for Board exams as well as competitive exams. C. Assertion is correct but Reason … 3. Multiple Choice Question (MCQ) of Electronics page-17:241. 3. (a) Derive the equation of balance of a Schering Bridge. a) The saturation voltage V CF of silicon transistor is more than germanium transistor. a. C. unknown resistance. C. From the same source as the unknown voltage. In a potentiometer of 10 wires, the balance point is obtained on the 7 th wire. These are also used for measuring an effective or r.m.s. Since the reference voltage can be produced from an accurately calibrated voltage divider, a potentiometer can provide high precision in … A standard cell of 1.0185 V is used with a slide wire potentiometer. 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. [5] (b)Explain how LVDT can be used for measurement of displacement. 1.State the underlying principle of a potentiometer? | 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. Measurement of Displacement using Inductive Transducer. Measurement Special MCQ Part Two 1. Electrical and electronics measurements miscellaneous. (c) potentiometer is cheaper than voltmeter. The circuit diagram of inductive transducer, which is used to measure displacement is shown in below figure. It is an alloy of A. The potentiometer wire, A B, has a total resistance of R 0 . 5. P and Q are known as the ratio arms. Free PDF Download of CBSE Physics Multiple Choice Questions for Class 12 with Answers Chapter 3 Current Electricity. 26. 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. [5] For measuring an A.C. voltage by an A.C. potentiometer the supply for the potentiometer is taken from. The use of _____ instruments is merely confined within laboratories as standardizing instruments. Answered By . Answer: A resistance of R draws the current form of the potentiometer. The use of _____ instruments is merely confined within laboratories as standardizing instruments. It is also used for measuring low resistances. [5] 6. Potentiometers are used to measure linear and angular displacement. A potential divider is normally connected. A potentiometer may be used for_____? During the measurement of a low resistance using a potentiometer, the following readings were obtained: Voltage drop across unknown resistance = 0.531 volt. Instructions. 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 . A potentiometer is a resistive sensor used to measure rotary motion as … This tutorial will explain how to measure resistance of the potentiometer through at digital multimeter for its accurate value. Potentiometers work by varying the position of a sliding contact across a uniform resistance. A potentiometer is a resistive sensor used to measure rotary motion as well as linear displacements. Not necessary to standardise the potentiometer. Easy Questions . c) The saturation voltage V CE for silicon transistor is same as that for germanium. Where, Ø gives the phase angle. 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 Answer: c Explanation: Standardization of potentiometers are done for accuracy in measurement, and it is … Multiple Choice Questions (MCQ) on Measurement and Instrumentation for Electrical Engineering. 1. A potentiometer may be used for_____? ... AB is a wire of potentiometer with the increase in the value of resistance R, the shift in the balance point J will be (a) towards B (b) towards A (c) remains constant (d) first towards B then back towards A. 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, … b) The saturation voltage V CE for germanium transistor is more than silicon transistor. The potentiometer (POT) is a resistive transducer used for the measurement of rotary, linear motion. Measurement and Instrumentation MCQs Answers Electrical Engineering Multiple Choice Questions Answers PDF Download. … [5] 6. 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. … b) The saturation voltage V CE for germanium transistor is more than silicon transistor. 5:4 2. Electrical and electronics measurements miscellaneous. 1. Moderate Questions. … Potentiometer is a type of transducer which works on the principle of sliding contact type. MCQ on poentiometry: Page-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. 13. A. 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 potentiometer wire is 100 cm long and a constant potential is maintained across it. 1. Measurement Special MCQ Part Two 1. (c) decrease resistance in series with the cell whose emf is … Daily Quiz … 0. Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the … The ratio of emf is. IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. 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? It can also use as a variable resistor in most of applications. What is the main purpose of the potentiometer as a device for? 8. Silver. 109 TOP Measurement and Instrumentation - Electrical Engineering Multiple choice Questions and Answers Latest Measurement and Instrumentation Questions and Answers List 1. a. What is Diagonal Matrix? (d) potentiometer does not take current from the circuit. 0. C) Long and thin. 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. [Delhi 2014 c] Ans.The potentiometer … A.C Galvanometers: The A.C galvanometers are mainly used as a null detector in the bridge and potentiometer circuit. Measurement and Instrumentation MCQs Answers Electrical Engineering Multiple Choice Questions Answers PDF Download. D. Any of the above. This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Self Balancing Potentiometers”. HELP; FULL SCREEN; EXIT; 0.000. becomes small. (a) Describe how an AC potentiometer, can be used for the calibration of wattmeter? Which of the following statement is true? Home >> Category >> Electrical Engineering (MCQ) questions and answers >> Displacement measurement; 1) The detectors used in optical sensors is. 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. 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