Question

What materials are necessary to build a simple electromagnet that can pick up metal objects?

(1 point)

Using a light bulb, aluminum foil, and tape.

Using a battery, an iron nail, and a wire.

Using two magnets, a plastic rod, and glue.

Using a magnet, a steel screw, and string.

Answer 1

Using a battery, an iron nail, and a wire.

Wrap the wire around the iron nail and connect the ends to the battery; the current creates a magnetic field that magnetizes the nail so it can pick up small metal objects.