Question

A current passing through the wire ab is increasing. In which direction does the induced current

Answer 1

Question1.

Predict the direction of induced current in the situations described by the following Figs. 6.18(a) to (f).
Answer:

According to Lenz’s law, the end of the coil facing S-pole of the magnet will behave as the south pole of the magnet.

The current induced in the coil will flow clockwise when magnet side is considered. The current flows from (qrpq).

When the magnet moves in the direction according to Lenz’s law, South pole is developed at end q as well as at end X.

Therefore, the induced current in the two coils (coil pq and coil XY) should flow clockwise when magnetic side is considered.

Therefore, the induced current will flow in the direction prqp in coil pq and in the coil XY, induced current will flow in the direction YZXY.

By Lenz’s law, the induced current in the right loop will be along XYZ.

By Lenz’s law, the induced current in the left loop will be ZYX.

By Lenz’s law, the induced current in the right coil will be XrY.

The current flowing through the straight conductor produces the circular magnetic field which lies in the plane of the loop.

As no flux is linked with the loop so no current is induced in the loop.