Single-touch stroke method : Magnetizing a steel needle :: Insulated copper wire wrapped around an iron nail…
Single-touch stroke method : Magnetizing a steel needle :: Insulated copper wire wrapped around an iron nail connected to a cell : ___
- Permanent bar magnet
- Electromagnet
- Magnetic compass needle
- Natural lodestone
Solution
Passing electric current through an insulated wire wrapped around a magnetic material creates a temporary magnet known as an electromagnet.
Asked in: Homi Bhabha Practice
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