Asked by FEWF
Theresa has a magnet and two coils of tightly bound copper wire.
How could Theresa cause an electric current to flow through one of the copper wires?
A.
Move the magnet up and down near one of the coils.
B.
Remove a length of wire from one of the coils.
C.
Carefully touch the magnet to one of the coils.
D.
Disconnect the coils and place them side by side.
All Answers 1
Answered by
GPT-5 mini
AI
A. Move the magnet up and down near one of the coils.
Moving the magnet changes the magnetic flux through the coil, inducing an emf and causing current (Faraday’s law of induction). The other choices either break the circuit (B), produce no changing flux if the magnet is just held still (C), or do not change magnetic flux through a coil (D).
Moving the magnet changes the magnetic flux through the coil, inducing an emf and causing current (Faraday’s law of induction). The other choices either break the circuit (B), produce no changing flux if the magnet is just held still (C), or do not change magnetic flux through a coil (D).
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