Question

9. The permanent magnet is being moved toward

the wire. If the permanent magnet is accelerated
as it moves toward the wire, what will happen to
the induced current in the wire?
A. The current decreases as the magnet moves
faster.
B. The current increases as the magnet moves faster.
C. There is no current in the wire.

Answer 1

The induced current in the wire increases as the permanent magnet is accelerated and moves faster towards the wire.

Step-by-step explanation:

When a permanent magnet is moved towards a wire, it creates a changing magnetic field in the wire. According to Faraday's law of electromagnetic induction, the change in magnetic field induces an electromotive force (EMF) in the wire, which results in the generation of an induced current.

As the permanent magnet is accelerated and moves faster towards the wire, the rate of change of the magnetic field also increases. This, in turn, leads to a stronger induced EMF and a higher induced current in the wire, following Ohm's law.

Therefore, the correct answer is B. The current increases as the magnet moves faster.

Learn more about Electromagnetic induction