A student connects a battery to a wire and straps the wire around an iron nail to produce an electromagnet which action should students take to increase the number paperclips the electromagnet can pick up? He should replace the iron nail with a plastic spoon, he should decrease the current through the wire, he should add another battery, he should reduce the number of turns
The student should add another battery to increase the number of paperclips the electromagnet can pick up. Increasing the number of batteries strengthens the current flowing through the wire, which in turn strengthens the magnetic field produced by the electromagnet. This increased magnetic field allows the electromagnet to attract and hold more paperclips.
