Figure 6.60 shows two identical rectangular loops (1) and (2), placed on a table along with a straight long current carrying conductor between them. What will be the directions of the induced currents in the loops when they are pulled away from the conductor with same velocity $v$? Justify your answer.

 

Figure 6.60 shows two identical rectangular loops (1) and (2), placed on a table along with a straight long current carrying conductor between them. Will the emfs induced in the two loops be equal? Justify your answer.

A bar magnet falls from height '$h$' through a metal ring (Fig. 6.61). Will its acceleration be equal to '$g$'? Give reason for your answer.

A bar magnet falls from height '$h$' through a metal ring (Fig. 6.61). What happens if the ring, in the above case is cut so as not to form a complete loop?

A cylindrical bar magnet is kept along the axis of a circular coil and near it as shown in Fig. 6.62. Will there be any induced emf at the terminals of the coil when the magnet is rotated about its own axis?

A cylindrical bar magnet is kept along the axis of a circular coil and near it as shown in Fig. 6.62. Will there be any induced emf at the terminals of the coil when the magnet is rotated about an axis perpendicular to the length of the magnet?

Three identical closed coils $A$, $B$ and $C$ are placed with their planes parallel to one another. Coils $A$ and $C$ carry currents, as shown in Fig. 6.63(a). Coils $B$ and $C$ are fixed in position and coil $A$ is moved towards $B$ with uniform motion. Is there any current induced in $B$? If yes, mark its direction.

Two coils $P$ and $S$ are arranged as shown in Fig. 6.64. What will be the direction of induced current when switch is closed?

Two coils $P$ and $S$ are arranged as shown in Fig. 6.64. What will be the direction when switch is opened?