Question

"A horizontal loop of wire has a magnetic field passing upward through the plane of the loop. If this magnetic field increases with time, is the direction of the induced current clockwise or counterclockwise (viewed from above) as predicted by Lenz's law?

Answer 1

Answer:

See explanation

Explanation:

If the magnetic field increases up through the loop a current will flow such that the magnetic field from this current will oppose the change in magnetic flux. (As per Lenz's  Law)

The magnetic field is increasing up so the field from the current must be directed down.

From the application of right hand rule by pointing the thumb downwards and curl our fingers the current flows clockwise then the magnetic field from this current will be directed downward inside the loop of wire.

Answer 2

Answer:

Anticlockwise direction

Explanation:

According to Lenz law, the induced current acts in a direction that opposes the change of flux producing it.

The loop is horizontal, and the magnetic flux is acting upward from the horizontal plane. This means that a Noth pole induced magnet has to be produced to counter this effect.

Anticlockwise flow of induced current produces a Noth seeking magnet while the reverse is true for a clockwise flow.