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Assertion : Potentiometer is used only t...

Assertion : Potentiometer is used only to compare potential differences.
Reason: The potentiometer draws current from the voltage source being measured .

A

If both assertion and reason are true and reason is the correct explantion of assertion.

B

If both assertion and reason are true and reason is not the correct explantion of assertion.

C

If assertion is false but reason is true.

D

If assertion is true but reason is false.

Text Solution

Verified by Experts

The correct Answer is:
D
Potentiometer is a device used to compare potential differences. Since the method involves a condition of no current flow, the device can be used to measure potential difference, internal resistance of a cell and compare emf's of two sources. Potentiometer draws no current from the voltage source being measured.
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