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.

Show that in a metre bridge, percentage error in the determination of an unknown resistance is minimum when the null point is at the center of the wire.

Show that percentage error in the measurement of m/B by a deflection magnetometer is minimum when deflection is near about 45^(@) .

For the accurate measurement of resistance by metre bridge , the null point should be obtained

For the accurate measurement of resistance by metre bridge, the null point should be obtained

The percentage error in measuring resistance with a metre bridge can be minimized by adjusting the balancing point close to

Show that in a tangent galvanometer the percentage error in the measurement of current is minimum when the deflection is 45^(@) .

Show that in a tangent galvanometer the percentage error in the measurment of current is a minimum when the deflection is 45^(@) .