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JEE Main 201419 AprilOnline

Exam: JEE Main
Year: 2014
Date: 19 April
Mode: Online
Subject: Physics
Chapter: Magnetic Properties of Matter

JEE Main 2014 · 19 April · Online · Physics · Magnetic Properties of Matter

An example of a perfect diamagnet is a superconductor. This implies...

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

Options

A ${B}_{s} = B$ .
B ${B}_{s} = 0$ .
C ${B}_{s} < B$ but ${B}_{s} \ne 0$ .
D ${B}_{s} = – B$

Correct answer

B. ${B}_{s} = 0$ .

Step-by-step solution

In diamagnetic material, the magnetic field strength decreases. So, in a perfect diamagnetic, it has to be zero.

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