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Statement - I : Wheatstone Bridge provides practical method for determination of an unknown resistance.
Statement - II : The error in measuring the unknown resistance is minimum in meter bridge experiment, if the balance point is close to 50 cms

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Both statements I and II are correct

Statement-I is correct and statement-II is incorrect

Statement-I is incorrect and statement-II is correct

Both statements I and II are incorrect

answer is A.

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Detailed Solution

A meter bridge works on the principle of a Wheatstone bridge. A Wheatstone bridge is based on the principle of null deflection, i.e., when the ratio of resistances in the two arms is equal, no current will flow through the middle arm of the circuit.

The percentage error in the measurement of resistance by a meter bridge is minimum when the null point is near about the centre of the wire.

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