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प्रश्न
Name and state the rule by which polarity at the ends of a current carrying solenoid is determined.
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उत्तर
The name of the rule is clock rule and it states. “If we look at the face of the loop and the direction of the current is anticlockwise, the direction of the magnetic field is north. If the direction of the current is clockwise, the direction of the magnetic field is south.”
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