MCQ
Who discovered the magnetic effect of electric current?
- ✓Oersted
- BNewton
- CEinstein
- DMaxwell
✓
Answer
Correct option: A.
Oersted
Oersted's law is the law that a steady electric current creates a magnetic field around it. This was discovered on April $21, 1820$, by Danish physicist Hans Christian Oersted $(1777–1851),$ when he noticed that the needle of a compass next to a wire carrying current turned.
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