Physics
Grade-10
Easy

Question

A bar magnet moves towards two identical parallel circular loops with a constant velocity v as shown in fig.

  1. The induced current in both the loops will be zero
  2. The induced current in both the loops will be zero
  3. The induced current in A is more than that in B
  4. The induced current is the same in both the loops

hintHint:

Since A is nearer the magnet, its flux change rate will be greater. 

The correct answer is: The induced current in A is more than that in B


    When a magnet is moved through the loops A and B with v velocity, the induced current in A is more than that of B.
    • When the magnet moves towards two identical loops in v velocity, it creates electromagnetic induction in both loops.
    • As a result, both A and B loops produce a flow of current.
    • The current flow in the loop A will be more than that of loop B, as the loop A creates stronger magnetic field.
    • The direction of the current produced in both A and B will be the same. So they'll be drawn to one another.
    • Since A is nearer the magnet, its flux change rate will be greater. As a result, current in A is increased.

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