Which statement is false?

Multiple choice question.
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A)
The direction a magnet moves through a coil of wire determines the direction of the electric current.

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B)
The direction a coil of wire moves through a magnetic field determines the direction of the electric current.

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C)
Current will flow through a wire as long as the magnetic field around the coil is changing.

D)
Current will not flow though a wire if the magnet is outside the coil.

1 answer

The false statement is:

D) Current will not flow through a wire if the magnet is outside the coil.

This statement is false because a changing magnetic field can induce current in a coil of wire, even if the magnet is outside that coil. As long as there is relative motion between the magnet and the coil or if the magnetic field changes over time, current can be induced in the coil.