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.

Calculate the specific resistance of the material of a wire having a resistance of 4.4 Omega , length 1.1 m and radius 0.2 mm.

the given circuit has two ideal diodes connected as shown in the figure below. The current flowing through the resistance R_1 will be

If the balancing point is obtained at 35^(th) cm on a metre bridge , then the ratio of resistances in the gaps is

Two resistances are connected in the two gaps of a meter bridge. The balance point is 20 cm from the zero end. When a resistance 15 Omega is connected in series with the smaller of two resistance, the null point+ shifts to 40 cm . The smaller of the two resistance has the value.

Two resistances X Omega and Y Omega are connected in the left and right gap of a metre bridge. A null point was found on the bridge wire such that the ratio of lengths of two segments of wire is 2:3 . The distance of the null point was measured from the left end of the wire. When the valueof X is increased by 20 Omega , the position of the null point divides the wire into segments of lengths in the ratio 4:1 .Determine X and Y.

A uniform wire is cut into two pieces such that on piece is twice as long as the other. The two piece are connected in parallel in the left gap of a meterbridge. When a resistance of 20Omega is connected in the right gap, the null point is obtained at a distance of 60cm from the right end of the wire. Find the resistance of the wire before it was cut into two pieces.

Resistance in the two gaps of a meter bridge are 10 ohm and 30 ohm respectively. If the resistances are interchanged he balance point shifts by

Two resistance R_(1) = 50 pm 2 ohm and R_(2) = 60 ohm connected in series , the equivalent resistance of the series combination in

In an experiment of meter bridge, a null point is obtaining at the center of the bridge wire. When a resistance of 10 ohm is connected in one gap, the value of resistance other gap is