Question

Maxwell's right hand thumb rule ....

Answer 1

Assume that the current carrying conductor is held in the right hand so that the fingers wrap around the conductor and the thumb is stretched. If the thumb is along the direction of current, wrapped fingers will show the direction of circular magnetic field lines.

Answer 2

Assume that the current carrying conductor is held in the right hand so that the fingers wrap around the conductor and the thumb is stretched (as shown in the figure at left). If the thumb is along the direction of current, wrapped fingers will show the direction of circular magnetic field lines.