Question 2: Magnetism and Matter

Question

An example of a perfect diamagnet is a superconductor. This implies that when a superconductor is put in a magnetic field of intensity B, the magnetic field B
s
inside the superconductor will be such that :

Accepted Answer

Key Concept:
In a
superconductor below its critical temperature
, the
Meissner effect
occurs Ã¢ÂÂ it completely expels magnetic flux from its interior.
This means the
magnetic induction inside the superconductor
is:
$ B_s = 0 $
regardless of the applied external field (until the critical field strength is exceeded).
Correct Option:
Option B: $ B_s = 0 $
Ã¢ÂÂ

Answer

B
s
= $$-$$ B

Answer

B
s
= 0

Answer

B
s
= B

Answer

B
s
< B  but  B
s
$$ 
e $$ 0

Magnetism and Matter

An example of a perfect diamagnet is a superconductor. This implies that when a superconductor is put in a magnetic field of intensity B, the magnetic field B s inside the superconductor will be such that :

Choose the correct answer: