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Potentiometer

If a voltmete...

Question

If a voltmeter draws zero current from the circuit then it is a potentiometer.

A

False

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B

True

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Solution

The correct option is B True

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Similar questions

Statement 1

: A potentiometer is preferred over a voltmeter for the measurement of e.m.f. of a cell.

Statement 2

: A potentiometer is preferred, as it does not draw any current from the cell.

Q. Assertion : Voltmeter is much better than a potentiometer for measuring emf of cell.
Reason : A potentiometer draws no current while measuring emf of a cell.

Q. Assertion :A potentiometer is preferred over a voltmeter for the measurement of emf of a cell. Reason: A potentiometer is preferred, as it does not drawn any current from the cell.

Q. Assertion :All electric devices shown in the circuit are ideal. The reading of each of ammeter (a) and voltmeter (V) is zero. Reason: An ideal voltmeter draws almost no current due to very large resistance, and hence (V) and (a) will read zero.

Q. In the question given below, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below it. Of the statements mark the correct answer.

Assertion (A): Potentiometer is much better than a voltmeter for measuring emf of cell.

Reason (R): A potentiometer draws no current while measuring emf of a cell.

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