Question
State and explain the Clock face rule for determining the polarities of a circular wire carrying current.
✓
Answer
According to the Clock face rule, we look at one face of a circular wire (or coil) through which a current is passing:
- If the current around the face of the circular wire (or coil) flows in the clockwise direction, then that face of the circular wire will be South pole (S-pole)
- If the current around the face of the circular wire (or coil) flows in the anti-clockwise direction, then that face of the circular wire will be North pole (N-pole).
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