Question
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.
Move the magnet up and down near one of the coils.
C.
Carefully touch the magnet to one of the coils.
D.
Disconnect the coils and place them side by side
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.
Move the magnet up and down near one of the coils.
C.
Carefully touch the magnet to one of the coils.
D.
Disconnect the coils and place them side by side
Answers
GPT-4o mini
The correct answer is **B. Move the magnet up and down near one of the coils.**
This process is known as electromagnetic induction, where a changing magnetic field (such as the movement of a magnet) induces an electric current in a nearby conductor (like the copper wire in the coils).
This process is known as electromagnetic induction, where a changing magnetic field (such as the movement of a magnet) induces an electric current in a nearby conductor (like the copper wire in the coils).