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Magnetism and Electromagnetism

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

reluctance
susceptance
permeance
residual magnetism

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Magnetism and Electromagnetism
Which of the following is a ferromagnetic material?

Nickel
Copper
Tungsten
Aluminium

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Magnetism and Electromagnetism
Which of the following is the unit of magnetic flux density?

None of the listed here
Tesla
Weber
Lumens

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Magnetism and Electromagnetism
The stray line of magnetic flux is defined as

A line of magnetic flux which does not follow the designed path
A line vertical to the flux lines
A line of magnetic flux in a non-uniform field
The mean length of a ring shaped coil

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Magnetism and Electromagnetism
For a given wirewound core, an increase in current through the coil

reverses the flux lines
increases the flux density
causes no change in flux density
decreases the flux density

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Magnetism and Electromagnetism
One telsa is equal to

1 mWb/m²
1 Wb/m²
1 Wb/mm²
1 Wb/m

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MORE MCQ ON Magnetism and Electromagnetism

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