For a continuous flow of current through a wire, the potential difference across the wire should be maintained.

A potentiometer wire carries current. The potential difference across 70 cm of its balances the potential difference across a 2 ohm coil supllied by a cell of e.m.f. 2 volt. When a 1 ohm coil is placed in parallel with the 2 ohm coil, a length equal to 50 cm of the potentiometer wire is required to balance the potential difference across the parallel combination. What is the internal resistance of the 2 V cell?

State the formula correlating the electric current flowing in a conductor and in voltage applied across it also, show this relationship by drawing a graph. What would be the resistance of a conductor if the current flowing throught it is 0.35 ampere when the potential difference across it is 1.4 volt.

The current flowing through a conductor and the potential difference across it two ends are as per readings of the ammeter and voltmeter shown below. The resistance of the conductor would be

A capacitor of capacity 100 muF is charged to a potential difference of 12 V. It is then connected across an inductor of inductance 6 mu H . What is the current (in A) in the circuit at a time when the potential difference across the capacitor is 6.0 V?

The displacement current flows in the dielectric of a capacitor, when the potential difference across its plates

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 ?

The values of current I flowing in a given resistor for the corresponding values of potential difference V across the resistor are given below_