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Magnetism and Electromagnetism

Magnetism and Electromagnetism
For which of the following materials the saturation value is the highest?

Diamagnetic materials
Ferromagnetic materials
Paramagnetic materials
Ferrites

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Magnetism and Electromagnetism
The induced voltage across a stationary conductor in a stationary magnetic field is

increased
decreased
reversed in polarity
zero

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Magnetism and Electromagnetism
Reciprocal of permeability is

Susceptibility
conductance
Permeability
Reluctivity

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Magnetism and Electromagnetism
A permeable substance is one

which is a good conductor
which is a strong magnet
which is a bad conductor
through which the magnetic lines of force can pass very easily

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Magnetism and Electromagnetism
Magnetism of a magnet can be destroyed by

All of the listed here
Heating
Hammering
By inductive action of another magnet

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Magnetism and Electromagnetism
The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is

inversely proportional to I
proportional to 7
proportional to distance between the conductors
proportional to X

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MORE MCQ ON Magnetism and Electromagnetism

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