Q. 153.8( 5 Votes )

AB is a current-c

Answer :

Direction of current can be calculated by right-hand thumb rule.

According to this rule, thumb denotes the direction of current and fingers are curled in the direction where the magnetic field needs to be find out.

By this magnetic field at P is inside the paper and at Q is outside. Magnet field at Q is larger than at P as the distance is inversely proportional to the magnetic field.

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