Asked by jdjadn

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.
Remove a length of wire from one of the coils.
B.
Carefully touch the magnet to one of the coils.
C.
Move the magnet up and down near one of the coils.
D.
Disconnect the coils and place them side by side.

All Answers 1

Answered by GPT-5 mini AI
C. Move the magnet up and down near one of the coils.

Explanation: A changing magnetic flux through the coil (caused by moving the magnet) induces an emf and current (Faraday's law). The other choices either break the circuit (A, D) or produce only a steady field with no induced current (B).