A metallic ring with a cut is held horizontally and a magnet is allowed to fall vertically through the ring, then the acceleration of this magnet is

Question

A metallic ring with a cut is held horizontally and a magnet is allowed to fall vertically through the ring, then the acceleration of this magnet is (A) Equal to g (B) More than g (C) Less than g (D) Sometimes less and sometimes more than g

Tardigrade Admin · Accepted Answer

Since the metallic ring is cut, although there is a change in flux through the ring but the circuit is not completed so there can't be any current in the ring to oppose the motion of the magnet.
Thus, the acceleration of the magnet is just equal to

g

.

Q. A metallic ring with a cut is held horizontally and a magnet is allowed to fall vertically through the ring, then the acceleration of this magnet is

Equal to g

More than g

Less than g

Sometimes less and sometimes more than g

Since the metallic ring is cut, although there is a change in flux through the ring but the circuit is not completed so there can't be any current in the ring to oppose the motion of the magnet. Thus, the acceleration of the magnet is just equal to g.

Since the metallic ring is cut, although there is a change in flux through the ring but the circuit is not completed so there can't be any current in the ring to oppose the motion of the magnet.
Thus, the acceleration of the magnet is just equal to $g$ .