194 questions in Magnetism & Electromagnetism - HI MCQ!

The change of cross-sectional area of conductor in magnetic field will affect?

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The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields?

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The relative permeability is less than unity is case of?

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A permeable substance is one?

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Main causes of noisy solenoid are?

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What will be the current passing through the ring shaped air cored coil when number of turns is 800 and ampere turns are 3200?

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Ferrites are …… materials?

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A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be?

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Indicate which of the following material does not retain magnetism permanently?

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The left hand rule correlates to?

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