A battery sets up an electric field of 25 N/C inside a uniform wire of length 2 m and a resistance of `5Omega`. Find current through the wire.

Electric field inside a copper wire of length 10 m , resistance 2 ohm connected to a 10 volt battery is

Calculate the potential gradient of a potentiometer wire of length 5 m ,if resistance of the wire is 5 Omega and current of 1.2 mA flows through it.

The resistance of a wire of length 15.7 m and radius 0.5 mm is 10 Omega . Find the resistivity of the material of the wire.

The resistance of a wire of length 31.4 m and diameter 1 mm is 20 Omega . Find the resistivity of the material of the wire.

A potential difference is applied across a wire of length 1 m and resistance 10 Omega , such that the current through it is 1 A. The electric field inside the wire is __________N/C.

Electric field inside a copper wire of length 10 meter, resistance 2 ohm connected to a 10 volt battery is (in SI units)

Electric field inside a copper wire of length 10 meter, resistance 2 ohm connected to a 10 volt battery is (in SI units)

A battery of e.m.f 2V and internal resistance 1Omega is used to send a current through a potentiometer wire of length 200cm and resistance 4Omega . What length of the wire will be required to balance a cell of e.m.f 1.08V?

A potentiometer circuit is shown in Figure 3. AB is a uniform metallic wire having length of 2 m and resistance of 8Omega . The batteries E_(1) and E_(2) have emfs of 4V and 1.5 V and their internal resistance are 1Omega" and "2Omega respectively. When the jockey J does not touch the wire AB, calculate : (a) the current flowing through the potentiometer wire AB. (b) the potential gradient across the wire AB.

A current of 1.0 mA is flowing through a potentiometer wire of length 4 m and of resistance 4 Omega , find the potential gradient of potentiometer wire