In the measurement of resistance by a meter-bridge, the current is necessarily reversed through the bridge wire to eliminate

In the measurement of resistance by meter bridge, the end error can be eliminated by ............. .

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 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.

In specific resistance measurement of a wire using a meter bridge, the key k in the main circuit is kept open when we are not taking readings. The reason is

Temperature and resistance, Wheatstone Bridge and Meter Bridge

Is it necessary to keep the length of the slide-bridge wire 1 meter ? Explian

Two resistances 2 ohm and 3 ohm are connected across the two gaps of the metre bridge as shown in the figure .Calculate the current through the cell when the bridge is balanced and the specific resistance of the material of the metre bridge wire. Given the resistance of the bridge wire is 1.49 ohm and its diameter is 0.12 cm.