A student connects a battery to a wire and wraps the wire around an iron nail to produce an electromagnet. Which action should the student take to increase the number of paper clips the electromagnet can pick up?(1 point)

Question

A. He should decrease the current through the wire.

B. He should replace the iron nail with a plastic spoon.

C. He should reduce the number of turns.

D. He should add another battery.

Answer 1

To increase the number of paper clips the electromagnet can pick up, the student should take the following action:

D. He should add another battery.

Adding another battery will increase the current flowing through the wire, which will in turn strengthen the magnetic field generated by the electromagnet, allowing it to pick up more paper clips.