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
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D. By all above methods
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7. which of the following is the unit of magnetic flux density ?
A. Weber
B. Lumens
C. Tesla
D. None of the above
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8. Which of the following is a ferromagnetic material?
A. Tungsten
B. Aluminium
C. Copper
D. Nickel
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9. Which of the following is expected to have the maximum permeability ?
A. Brass
B. Copper
C. Zinc
D. Ebonite
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10. Reciprocal of permeability is
A. Reluctivity
B. Susceptibility
C. Permittivity
D. Conductance
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