| Query | User |
|---|---|
| build a electro-magnet | entered by user 800724 |
| how to build an electromagnet | entered by user 98242 |
| how to make an electromagnet | entered by user 5823885 |
| how to make an electromagnet | entered by user ditto |
| magnets and strength | entered by user 962260 |
| magnets and strength | entered by user ditto |