question_answer

A current flows in a conductor from east to  west. The direction of the magnetic field at a point above the conductor is :

A)  towards east    

B)  towards west

C)  towards north

D)  towards south

Correct Answer: C

Solution :

According to Maxwells right hand screw rule, the direction of magnetic field at a point above the conductor is towards north and at a point below the conductor is towards south.