Assertion (A): In balanced condition of a Wheatstone bridge, there is no current flow through the galvanometer.

Reason (R ): The potential of point B and D are same.

Options

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is NOT the correct explanation of A
C. A is true but R is false
D. A is false and R is true

Answer

A

Explanation

In balanced condition of a Wheatstone bridge, there is no current flow through the galvanometer. This is also called null condition. So, the assertion is true.
When the potential of point B and D are same then only there is no current flow through the galvanometer. Hence the reason is also true and explains the assertion.