Question

question 11 of 20 using a coil of wire and a permanent magnet, a student performed an experiment with these steps: a. push the magnet into the coil. b. let the magnet remain within the coil. c. pull the magnet out of the coil. during which steps does an electric current flow through the coil? a. both b and c b. both a and c c. both a and b d. a, b, and c

Explanation:

According to Faraday's law of electromagnetic - induction, an electric current is induced in a coil when there is a change in magnetic flux through the coil. When the magnet is pushed into the coil (A) or pulled out of the coil (C), the magnetic flux through the coil changes, inducing a current. When the magnet remains within the coil (B), there is no change in magnetic flux, so no current is induced.

Answer:

B. Both A and C