A steady current from a source of emf is passing through a straight conductor from left to right. If the source in switched off, what will be the direction of induced current in the wire?

The electric current in a wire in the direction from B to A is increasing. What is the direction of induced current in the metallic loop kept above the wire?

The current through a straight current carrying conductor is i, what will he the magnetic'induction at any point on the wire:

An irregular shaped wire PQRS placed in a uniform magnetic field perpendicular to the plane of the paper changes into a circular shape. What will be the direction of the induced current in the loop.

A long straight wire is carrying a current. An electron starts its motion on a line parallel to the wire in a direction same as that of the current. What will be the direction of the force on the electron?

North pole of a bar magnet faces a closed ciruclar coil. It is oscillated rapidly along the common axis of the magnet and the coil. Determine the direction of induced current in the coil from Lenz's law.

If an LCR circuit is connected to a dc source , what will be the current through the circuit?

5 A current is flowing through a long straight conducting wire. What is the magnitude of magnetic field at a distance 10 cm from the wire ?

A long straight current carrying wire passes normally through the centre of circular loop. If the current through the wire increases, will there be an induced emf in the loop? Justify.