Question

Using Lenz's law, predict the direction of induced current in conducting rings 1 and2 when
current in the wire is (1) steadily decreasing, and (i) steadily increasing​

Answer 1

Answer:

1) Current in the wire is uniformly decreasing

Current in ring 1 is in clockwise direction and the current in ring 2 is counterclockwise direction

2) Current in the wire is uniformly increasing

Current in ring 1 is in counterclockwise direction and the current in ring 2 is clockwise direction

Explanation:

As per Lenz law we know that direction of induced current in the closed loop always opposes the causes due to which it is induced

So here the current is flowing in the wire from Right to Left

So here the magnetic field due to straight wire is into the plane above the wire and outside the plane below the wire

1) Current in the wire is uniformly decreasing

Since current is decreasing in the wire so here magnetic field due to wire is decreasing so the direction of induced current in the loop above the wire will be in clockwise direction and the direction of current in downward loop is counterclockwise direction

2) Current in the wire is uniformly increasing

Since current is increasing in the wire so here magnetic field due to wire is increasing so the direction of induced current in the loop above the wire will be in counterclockwise direction and the direction of current in downward loop is clockwise direction

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Topic : Lenz Law

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