Answer the following question:

A closed-loop is held stationary in the magnetic field between the north and south poles of two permanent magnets held fixed. Can we hope to generate current in the loop by using very strong magnets?

Answer the following question:

A closed conducting loop moves normal to the electric field between the plates of a large capacitor. Is a current induced in the loop when it is (i) wholly inside the capacitor (ii) partially outside the plates of capacitor? The electric field is normal to the plane of the loop.

Answer the following question:

A rectangular loop and a circular loop are moving out of a uniform magnetic field region (Fig. 6.55) to a field-free region with a constant velocity. In which loop do you expect the induced emf to be constant during the passage out of the field region? The field is normal to the loops.

Answer the following question:

Predict the polarity of the capacitor in the situation described by Fig. 6.55(b).

State Lenz's law. The closed-loop $PQRS$ is moving into a uniform magnetic field acting at right angles to the plane of the paper as shown in Fig. 6.56. State the direction in which the induced current flows in the loop.

Predict the direction of induced current in resistance R in Figs 6.57(a). Give reason for your answer.

Predict the direction of induced current in resistance R in Figs 6.57(b). Give reason for your answer.

Give the direction in which the induced current flows in the coil mounted on an insulating stand when a bar magnet is quickly moved along the axis of the coil from one side to the other as shown in Fig. 6.58.

In Fig. 6.59 given below, a bar magnet moving towards the right or left induces an emf in the coils (1) and (2). Find, giving reason, the directions of the induced currents through the resistors $AB$ and $CD$ when the magnet is moving towards the right.