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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Reciprocal of permeability is

Susceptibility
Reluctivity
conductance
Permeability

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Magnetism and Electromagnetism
The initial permeability of an iron rod is

The permeability almost in non-magnetised state
The permeability at the end of the iron rod
The lowest permeability of the iron rod
The highest permeability of the iron rod

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Magnetism and Electromagnetism
The voltage induced across a certain coil is 200 mV. A 120 resistor is connected to the coil terminals. The induced current is

12 mA
16 mA
1.7 mA
120 mA

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Magnetism and Electromagnetism
Substances which have permeability less than the permeability of free space are known as

Ferro magnetic material
Paramagnetic material
Bipolar
Diamagnetic material

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Magnetism and Electromagnetism
If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density

increases
decreases
doubles
remains the same

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Magnetism and Electromagnetism
The ratio of intensity of magnetisation to the magnetisation force is known as

Flux density
Relatice permeability
Susceptibility
None of the listed here

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MORE MCQ ON Magnetism and Electromagnetism

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