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Magnetism and Electromagnetism

Magnetism and Electromagnetism
One telsa is equal to

1 Wb/mm²
1 mWb/m²
1 Wb/m²
1 Wb/m

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Magnetism and Electromagnetism
The magnetism left in the iron after exciting field has been removed is known as

reluctance
residual magnetism
permeance
susceptance

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

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

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Magnetism and Electromagnetism
Magnetism of a magnet can be destroyed by

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

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Magnetism and Electromagnetism
The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is

2,000 V
3,125 V
31.25 V
1,000 V

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Magnetism and Electromagnetism
What is the flux density when the flux is 5.5 Wb and the cross-sectional area is 6 × 10–3 m2?

917 T
91.7 T
9.7 T
91 T

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MORE MCQ ON Magnetism and Electromagnetism

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