Medium MCQ +4 / -1 PYQ · JEE Mains 2021

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) $\chi$ = $-$1 is the condition for a perfect diamagnetic material, where x is its magnetic susceptibility.

Choose the correct answer from the options given below :

  1. A (A) and (B) only
  2. B (B) and (C) only
  3. C (C) and (E) only Correct answer
  4. D (B) and (D) only

Solution

(a) Electric monopoles exist while magnetic monopoles do not exist. <br><br>(b) Magnetic field lines at the ends and outside of solenoid cannot be confined. (c) Magnetic field lines are confined within a toroid. <br><br>(d) Magnetic field lines inside a bar magnet are parallel. <br><br>(e) For perfectly diamagnetic material $\chi$ = -1.

About this question

Subject: Physics · Chapter: Magnetism · Topic: Bar Magnet and Magnetic Field

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