Two wire A & B are of the same metal and are of same length have area of cross section in the ratio of 2:1 If the same potential difference is applied across each wire. What will be the ratio of the current flowing through the wires A & B ?

Two wires A and B are of same metal, have the same area of cross-section and have their lengths in the ratio 2 : 1. What will be the ratio of currents flowing through them respectively when the same potential difference is applied across the length of each of them ?

Two wires of the same metal have the same length, but their cross-sections are in the ratio of 3:1. They are joined in series. The resistance of the thicker wire is 10 Omega . The total resistance of the combinations will be

Two wires of the same material and length but diameters in the ratio 1:2 are stretched by the same force. The potential energy per unit volume for the two wires when stretched will be radio.

Two metallic wires of the same material B, have the same length out cross-sectional area is in the ratio 1:2. They are connected (i) in series and (ii) in parallel. Compare the drift velocities of electrons in the two wires in both the cases (i) and (ii) .

Two circular coils 1 and 2 are made from the same wire but the radius of the 1st coil is twice that of the 2nd coil. What is the ratio of potentail difference applied across them so that the magnetic field at their centres is the same?

Two wires are made of the same metal .The length of teh first wire is half that of the second wire and its diameter is double that of the second wire.If equal loads are applied on both wires,find the ratio of increase in their lengths.

Masses of three wires of a metal are in the ratio 1:2:3 and their lengths in the ratio 3:2:1. Electrical resistance of these wires will be in the ratio of

Two wires of the same material having lengths in the ratio 1 : 2 and diameters in the ratio 2 : 3 are connected in series with an accumulator. Compute the ratio of P.D. across the two wires.