A current-carrying coil is placed in the north-south direction. When seen from the east side a clockwise current is set up in the coil. The magnetic field at its centre will be directed toward the?

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North

South

West

East

answer is C.

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Detailed Solution

The right-hand thumb rule states that if a current-carrying conductor is imagined to be held in the right hand such that the thumb points in direction of the current, then curled fingers of the hand indicate the direction of the magnetic field.

According to the right-hand thumb rule, If the current-carrying coil is placed in the north-south direction and a clockwise current is set up in the coil when seen from the east then the magnetic field will be directed towards the west.

Therefore, 'West' is the correct response.

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