Question

Q29.with conventional current flowing counterclockwise,from a top view perspective, in what direction does the north pole of a compass needle, at the center of the current carrying coil of wire point?

Answer 1

Answer:

It will point in no particular direction.

Explanation:

Because it is like standing at magnetic north pole of the earth with a compass in one's hand.

Answer 2

Answer:

• With the “conventional current flowing counterclockwise”, from the perspective of top view, the ‘north pole’ of the compass needle, at the center region of the ‘current-carrying coil of wire’ will also rotate in the direction of counterclockwise.
• This is because the direction of magnetic field follows the direction of the flow of electric current and the north pole of a magnetic compass needle will point along the “direction of the magnetic field”. This is also in terms with the ‘right-hand thumb rule’ and Lenz’s Law.