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.

0 cm

20 cm

50 cm

100 cm

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The correct Answer is:

The percentage error in measuring resistance with a metre bridge can be minimized by adjusting the balancing point near the middle of the bridge i.e. close to 50 cm.

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