Magnetism And Electromagnetism Multiple Choice Questions and Answers

6.  Magnetism of a material can be destroyed by

   A. Heating

   B. Hammering

   C. By inductive action of another magnet

   D. By all above methods

7.  which of the following is the unit of magnetic flux density ?

   A. Weber

   B. Lumens

   C. Tesla

   D. None of the above

8.  Which of the following is a ferromagnetic material?

   A. Tungsten

   B. Aluminium

   C. Copper

   D. Nickel

9.  Which of the following is expected to have the maximum permeability ?

   A. Brass

   B. Copper

   C. Zinc

   D. Ebonite

10.  Reciprocal of permeability is

   A. Reluctivity

   B. Susceptibility

   C. Permittivity

   D. Conductance

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