JEE Main 2021PhysicsMagnetic Properties of MatterMediumMCQ

JEE Main 2021Magnetic Properties of Matter Question with Solution

JEE Main 2021 (18 Mar Shift 2)

Question

Which of the following statements are correct?
(A) Electric monopoles do not exist whereas magnetic monopoles exist.
(B) Magnetic field lines due to a solenoid at its ends and outside cannot be completely straight and confined.
(C) Magnetic field lines are completely confined within a toroid.
(D) Magnetic field lines inside a bar magnet are not parallel.
(E) χ=-1 is the condition for a perfect diamagnetic material, where χ is its magnetic susceptibility.

Choose the correct answer from the options given below :

Choose an option

Show full solutionCorrect option: A
Correct answer
A(C) and (E) only

Step-by-step explanation

Statement (C) is correct because, the magnetic field outside the toroid is zero and they form closed loops inside the toroid itself.

Statement (E) is correct because we know that super conductors are materials inside which the net magnetic field is always zero and they are perfect diamagnetic.

μr=1+χ

χ=-1

μr=0

For superconductors.

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About this question

This is a previous-year question from JEE Main 2021, covering the Magnetic Properties of Matter chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.