State three factors on which the resistance of a wire depends. Explain how does the resistance depend on the factors stated by you.

A charge 0.5 C passes through a cross section of a conductor in 5 s. Find the current.

When starter motor of a car is switched on for 0.8 s, a charge 24 C passes through the coil of the motor. Calculate the current in the coil.

In transferring 1.5 C charge through a wire, 9 J of work is done. Find the potential difference across the wire.