Assertion: A disc-shaped magnet is levitated | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Superconductors exhibit the Meissner effect,which means they expel magnetic fields from their interior when cooled below their critical temperatur

Vedclass · Accepted Answer

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) Superconductors exhibit the Meissner effect,which means they expel magnetic fields from their interior when cooled below their critical temperature $(T_c)$.Because of this,they act as perfect diamagnets.When a magnet is placed near a superconductor,the superconductor generates surface currents that create a magnetic field opposing the magnet's field.This results in a repulsive force that allows the magnet to levitate above the superconductor.Therefore,the Assertion is correct because the magnet levitates,and the Reason is correct because superconductors exhibit a repulsive force towards magnets due to the Meissner effect.

Assertion: $A$ disc-shaped magnet is levitated above a superconducting material that has been cooled by liquid nitrogen.
Reason: Superconductors repel a magnet.

Similar Questions

Explain Curie temperature.

Fill in the blank :
$(i)$ The domain size is ...... .
$(ii)$ The domain contains about ...... atoms.

$A$ uniform magnetic field,parallel to the plane of the paper,exists in space and is initially directed from left to right. When a bar of soft iron is placed in the field parallel to it,the lines of force passing through it will be represented by:

Ferromagnetic materials used in a transformer must have

If a paramagnetic bar is brought near a bar magnet, then it is

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion: $A$ disc-shaped magnet is levitated above a superconducting material that has been cooled by liquid nitrogen.Reason: Superconductors repel a magnet.