Physics
Grade-10
Easy

Question

A bar magnet is moved between two parallel circular loops A and B with a constant velocity v as shown in fig.

  1. The current in each loop flows in the same direction
  2. The current in each loop flows in opposite directions
  3. No current in the loops
  4. The loops will attract each other

hintHint:

When a magnet is moved inside two loops, the metal particle magnetizes and creates a magnetic field. This will lead to the induction of an electromagnetic field.

The correct answer is: The current in each loop flows in the same direction


    The current in each loop flows in opposite directions
    • When a magnet is moved inside two loops, the metal particle magnetizes and creates a magnetic field.
    • Magnetism is growing in loop B and decreasing in loop A as the magnet moves towards loop B.
    • As a result, the current flow in loops A and B are in the same direction.
    • If the observer is on the left, current will be induced in loop A in a clockwise direction and loop B in an anticlockwise way.
    • Thus, the loops will therefore repel one another.

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