Wheatstone Bridge Current Electricity Current Electricity Physics NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):

Assertion (A):	In a meter bridge experiment null point for an unknown resistance is put inside an enclosure maintained at a higher temperature. The null point can be obtained at the same point as before by increasing the value of the standard resistance.
Reason (R):	Resistance of metal increases with an increase in temperature.

In the light of the above statements choose the correct answer from the options given below:

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.	(A) is true but (R) is false.
4.	Both (A) and (R) are false.

Subtopic: Wheatstone Bridge |

62%

From NCERT

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Hints

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Given below are two statements:

Assertion (A):	In the Wheatstone Bridge shown in the figure, if the resistances in opposite arms are switched (i.e. \(Q, R\) are exchanged) then the bridge remains balanced if it was initially balanced.
Reason (R):	The balance condition \(\dfrac P Q\) = \(\dfrac R S\) is not affected if resistances in opposite arms are switched.

1.	(A) is True but (R) is False.
2.	(A) is False but (R) is True.
3.	Both (A) and (R) are True and (R) is the correct explanation of (A).
4.	Both (A) and (R) are True but (R) is not the correct explanation of (A).

Subtopic: Wheatstone Bridge |

82%

From NCERT

To view explanation, please take trial in the course.

NEET 2026 - Target Batch - Vital

Hints

To view explanation, please take trial in the course.

NEET 2026 - Target Batch - Vital