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Electricity and magnets are connected! Let's explore how they work together.
Magnets can pull on metals like iron. Every magnet has two ends called poles. Opposite poles pull together, and same poles push apart.
Electricity flows through a wire in a closed loop. As current moves, it makes an invisible magnetic force all around the wire.
You can build a magnet using power. Wrap a wire around an iron nail. When power flows, the nail becomes a strong magnet!
✏️ Worked example
How can you make a simple electromagnet stronger?
- Get a battery, an iron nail, and insulated wire.
- Wrap the wire around the nail 10 times.
- Connect the wire ends to the battery.
- Test how many paperclips the nail can pick up.
- Wrap 10 more loops of wire around the nail.
- Test again to see that more loops pick up more clips.
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