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Magnetic Effects of Electric Current
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30/07/2021 2:28 pm
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For the coil in the diagram below, when the switch is pressed :
(a) what is the polarity of end A?
(b) which way will the compass point then?
1 Answer
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30/07/2021 2:28 pm
(a) End A becomes S-pole because current flows in clockwise direction at A.
(b) When A becomes S-pole, the other end becomes N-pole. So the tip of the compass (with also has North polarity) moves away from this end i.e., tip moves towards right.