When a coil is joined to a cell, current in it grows with a time constant τ. The coil is disconnected from the cell before the current has reached its steady-state value, and, it is then short-circuited. The current will now decrease with a time constant
(a) τ
(b) > τ
(c) < τ
(d) either (b) or (c) depending on the instant at which it was disconnected from the cell
