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CBSE Class 12-science Answered

How can a person identify whether the magnetic field at a particular point is due to earth or due to some current carrying conductor?

Asked by Topperlearning User | 28 Apr, 2015, 03:07: PM
Expert Answer

A freely suspended magnetic needle always rests in north-south direction due to earth’s magnetic field, and if this magnetic needle turns to some other direction and returns back to north-south  when the current is switched off , then the magnetic field is due to  a current carrying conductor.

Answered by | 28 Apr, 2015, 05:07: PM
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