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(C) As the bar magnet falls through the copper coil, the magnetic flux linked with the coil changes.According to Faraday's law of electromagnetic indu

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$ < g$

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(C) As the bar magnet falls through the copper coil, the magnetic flux linked with the coil changes.According to Faraday's law of electromagnetic induction, this change in magnetic flux induces an electromotive force (emf) and consequently an induced current in the coil.According to Lenz's law, the direction of this induced current is such that it opposes the cause that produces it, which is the motion of the falling magnet.This induced current creates a magnetic field that exerts an upward repulsive force on the falling magnet.Therefore, the net downward force on the magnet is $F_{net} = mg - F_{repulsive}$.Since there is an upward force opposing gravity, the net acceleration $a$ of the magnet is given by $a = \frac{F_{net}}{m} = g - \frac{F_{repulsive}}{m}$.Thus, the net acceleration of the magnet is less than $g$.

$A$ bar magnet is allowed to fall vertically through a copper coil placed in a horizontal plane. The magnet falls with a net acceleration:

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