.To find the polarities of a current-carrying coil or a solenoid ,the rule is used :
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Answer and Explanation:
To determine the polarities at the ends of a current-carrying solenoid we use the clock face rule. If the current around the face of the circular coil flows in the clockwise direction, then that face of the coil will be the south pole.
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Answer:
To determine the polarities at the ends of a current-carrying solenoid we use the clock face rule.
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