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Magnetism and Electromagnetism

Magnetism and Electromagnetism
When a solenoid is activated, the force that moves the plunger is

varying voltage
a steady current
an electromagnetic field
a permanent magnetic field

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Magnetism and Electromagnetism
The materials are a bit inferior conductors of magnetic flux than air.

Diamagnetic
Ferromagnetic
Dielectric
None of the listed here

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Magnetism and Electromagnetism
The magnetic materials exhibit the property of magnetisation because of

orbital motion of electrons
spin of nucleus
spin of electrons
either of these

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Magnetism and Electromagnetism
The main constituent of permalloy is

Cobalt
Tungsten
Nickel
Chromium

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Magnetism and Electromagnetism
A magnetic field exists around

Copper
Iron
Aluminium
Moving Charges

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Magnetism and Electromagnetism
When the north poles of two bar magnets are brought close together, there will be

a force of repulsion
no force
a downward force
a force of attraction

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MORE MCQ ON Magnetism and Electromagnetism

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