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 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)

Responses

He should add another battery.
He should add another battery.

He should reduce the number of turns.
He should reduce the number of turns.

He should decrease the current through the wire.
He should decrease the current through the wire.

He should replace the iron nail with a plastic spoon.

Answer 1

He should add another battery.

Answer 2

Or INCREASE the number of turns

Or INCREASE the current
.... but forget the plastic spoon.

Answer 3

Yes, increasing the number of turns or increasing the current through the wire will also increase the strength of the electromagnet and therefore the number of paper clips it can pick up. However, replacing the iron nail with a plastic spoon would not be an effective action as plastic is not a magnetic material.