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NEET
Exam
NEET
Subject
Physics
Chapter
Electromagnetic Induction

NEET · Physics · Electromagnetic Induction

What happens to the metal ring supported by a cardboard on top of a...

What happens to the metal ring supported by a cardboard on top of a fixed solenoid, when the current in the solenoid is switched off?
What happens to the metal ring supported by a cardboard on top of a fixed solenoid, when the current in the solenoid is

Options

  1. AThe ring will fall off the cardboard due to a downward force.
  2. BThe ring will remain on the cardboard due to an increased upward reaction from the cardboard.
  3. CThe ring will move upwards due to the magnetic field created by the solenoid.
  4. DThe ring will experience a repulsive force from the solenoid, causing it to move away.

Correct answer

B. The ring will remain on the cardboard due to an increased upward reaction from the cardboard.

Step-by-step solution

Correct Option is : (B)
The ring will remain on the cardboard due to an increased upward reaction from the cardboard.
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