General

State and explain the clock face rule for determining the polarities of a circular wire carrying current.

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The clock face rule requires us to examine one face of a circular wire (or coil) through which a current is flowing:
If the current runs clockwise around the face of the circular wire (or coil), that face of the circular wire will be the South pole ( S-pole).
If the current runs anticlockwise around the face of the circular wire (or coil), that face of the circular wire will be the North pole ( N-pole).

Final Answer:
Hence, According to the clock face rule we look at one face of a circular wire ( or coil) through which a current is passing.

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