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Show that the percentage error in the me...

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

A

0 cm

B

20 cm

C

50 cm

D

80 cm

Text Solution

Verified by Experts

The correct Answer is:
C
The percentage error can be minimised by adjusting the balance point near the middle of the bridge i.e. close to 50 cm.
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