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 are 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) x=−1 is the condition for a perfect diamagnetic material, where x is its magnetic susceptibility Choose the correct answer from the options given below:

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B and D only

B and C only

C and E only

A and B only

answer is C.

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Detailed Solution

Magnetic field lines are completely confined within a toroid and susceptibility for a perfectly diamagnetic substance is -1.

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