Question

The north south polanties of an electromagnet can be found easily by using

Answer 1

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The north south polarities of an electromagnet can be found easily by using clock face rule. Cloc face rule states that when an observers is looking at the face of the coil and find s that the current is flowing in the anti-clockwise direction, then the face of the coil behaves as north pole.

Determine the north and south pole of an electromagnet:

Bring the North pole of bar magnet near the electromagnet. If electromagnet is attracted towards the bar magnet then that end is South pole and other is North. If it is repulsed then the end is North pole and other is South pole.

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