Ellie made an electromagnet with wire, a nail, and a 2.5-volt battery. The electromagnet attracted a paper clip from 2 inches away.

What actions will make the electromagnet stronger?

1. Increase the number of times the wire is wrapped around the nail. The more coils of wire there are, the stronger the magnetic field produced by the electromagnet.

2. Use a stronger battery or power source. A higher voltage battery will provide more current to the wire, increasing the strength of the magnetic field.

3. Use a larger nail or core material. A larger nail will have more surface area and material for the magnetic field to interact with, making the electromagnet stronger.

4. Use a thicker wire. Thicker wire has lower resistance, allowing more current to flow through the wire and creating a stronger magnetic field.

5. Increase the number of batteries or power sources connected in series. Connecting multiple batteries in series will increase the overall voltage and current flowing through the wire, making the electromagnet stronger.