Magnetism And Electromagnetism Multiple Choice Questions and Answers

31.  The tubes of force within the magnetic material are known as

   A. Electric flux

   B. Lines of force

   C. Tubes of indication

   D. None of the above

32.  The Biot-savart's law is a general modification of

   A. Kirchhoff's law

   B. Lenz's law

   C. Ampere's law

   D. Faraday's laws

33.  The magnetic materials exhibit the property of magnetisation because of

   A. Orbital motion of electrons

   B. Spin of electrons

   C. Spin of nucleus

   D. All of the above

34.  For which of the following materials the saturation value is the highest?

   A. Ferromagnetic materials

   B. Paramagnetic materials

   C. Diamagnetic materials

   D. Ferrites

35.  For which of the following materials the net magnetic moment should be zero?

   A. Diamagnetic materials

   B. Ferrimagnetic materials

   C. Antiferromagnetic materials

   D. Antiferrimagnetic materials

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