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Electromagnetism
Question | Answer |
---|---|
What is an electromagnet? | Current carrying wire wrapped around an iron core. |
How to make an electromagnet stronger? | More coils, bigger iron core, & bigger battery |
What is a motor? | A device that uses magnetism and electricity to make motion |
What is a generator? | A device that uses magnets and motion to make electricity |
Parts of an electromagnet? | Coil of wire, battery, & iron core |
Uses of motors | Cars, power tools, etc. |
Uses of electromagnets | Doorbells, cranes, & speaker |
Use of generator | Make electricity |
Advantage of electromagnets | Turn on and off, reverse poles, change strength |