Magnetism And Electromagnetism Multiple Choice Questions and Answers


41.  A main constituent of permalloy is


   A. Cobalt

   B. Chromium

   C. Nickel

   D. Tungsten


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C. Nickel

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42.  Which of the following is a vector quantity?


   A. Relative permeability

   B. Magnetic field intensity

   C. Flux density

   D. Magnetic potential


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B. Magnetic field intensity

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43.  Tesla is a unit of


   A. Field strength

   B. Inductance

   C. Flux density

   D. Flux


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C. Flux density

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44.  A magnet does not attract


   A. Cobalt

   B. Nickel

   C. Copper

   D. Iron


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C. Copper

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45.  The direction of magnetic lines of force is


   A. From South Pole to North Pole

   B. From North Pole to South Pole

   C. From one end of the magnet to another

   D. None of the above


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B. From North Pole to South Pole

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