Physics
Current is flowing through a coil as shown in the figure. Which one of the given figures will correctly depict the magnetic polarity and the direction of the lines of force along the axis of the coil.
- 1.
- 2.
- 3.
- 4.
Electro-Magnetism
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Answer
Reason — As current is flowing in clockwise direction in the coil and according to clock rule if the current in wire around that face is in anticlockwise direction, the face has the north polarity, while if the current at that face is in clockwise direction, the face has the south polarity.
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