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Magnetism and Electromagnetism

Magnetism and Electromagnetism
One telsa is equal to

1 Wb/m
1 mWb/m²
1 Wb/mm²
1 Wb/m²

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Magnetism and Electromagnetism
Paramagnetic materials have relative permeability

equal to unity
equal to that ferromagnetic mate rials
slightly more than unity
slightly less than unity

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Magnetism and Electromagnetism
The unit for reluctance is

At/Wb
At/m
tesla
Wb

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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
1,000 V
3,125 V
31.25 V

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Magnetism and Electromagnetism
When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage

increases
decreases
remains constant
reaches zero

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

M
2M
M/4
M/2

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MORE MCQ ON Magnetism and Electromagnetism

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