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The firgure shows a circuit diagram of a...

The firgure shows a circuit diagram of a 'Wheatstone Bridge' to measure the resistance `G` of the galvanometer The relation `(P)/(Q) = (R )/(G)` will be satisfied only when

A

the galvanometer shows a deflection when swich S is closed

B

the galvanometer shows a deflection when swich S is open

C

the galvanometer shows no change in deflection whether S is open or closed

D

the galvanometer shows no deflection

Text Solution

Verified by Experts

The correct Answer is:
C
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