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.
- The current in each loop flows in the same direction
- The current in each loop flows in opposite directions
- No current in the loops
- The loops will attract each other
Hint:
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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