Q. 3
You are facing a circular wire carrying an electric current. The current is clockwise a seen by you. Is the field at the centre coming towards you or going away from you?
Answer :
We can predict the direction of the magnetic field by Maxwell’s Right hand Cork-Screw rule. So we put the thumb of our right hands pointing towards the direction of current and now the direction the other fingers curl toward will be direction of the magnetic field.
So, we get the field at the center is moving away from me if the current is going in the clockwise direction.
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