Question

If a bar magnet is doped into a circular ring placed horizontally, then what change will happen?

• A. Magnetic field increases in the ring
• B. Magnetic field decreases in the ring
• C. No effect on magnetic field
• D. Magnetic field becomes zero

Hint:

When a bar magnet is placed near a conductor or inside a ring, the magnetic field can either enhance or alter the field in the vicinity depending on the orientation and magnetic strength of the magnet.

Answer 1

The Correct Option is A

When a bar magnet is placed inside a circular ring, it generates a magnetic field around it. The direction and strength of this magnetic field depend on the orientation and strength of the bar magnet. - Magnetic field increases in the ring: When the bar magnet is doped inside the ring, the magnetic field generated by the magnet interacts with the ring, and the magnetic field in the region of the ring is affected. This can lead to an increase in the magnetic field inside the ring due to the bar magnet's own field. - Magnetic field decreases in the ring: This is not true because the field produced by the magnet will either enhance or remain stable depending on the placement. - No effect on magnetic field: This is incorrect because placing the bar magnet inside the ring will indeed influence the magnetic field in the ring. - Magnetic field becomes zero: This would only occur if the bar magnet were perfectly balanced or removed, which is not the case here. Thus, the magnetic field increases in the ring due to the presence of the bar magnet.