Question

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$\huge \bf \red{Question:-}$
Explain, how did the Oersted , a Danish physicist , accidently discovered that an electric current changes the direction of a nearby compass Needle?
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Answer 1

Answer:

Oersted had discovered that an electric current creates a magnetic field. The magnetic field created by the current was strong enough to attract the needle of the nearby compass.

Answer 2

Answer:

good evening

Tamara made the simple device in this picture for science class. She wrapped a wire around a nail and connected the ends of the wire to the terminals of a battery. The nail is attracting paper clips, so it appears to have become magnetized. The device isn’t complicated, but it shows a very important relationship.