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Magnetism and Electromagnetism

Magnetism and Electromagnetism
A material which is slightly repelled by a magnetic field is known as

conducting material
ferromagnetic material
diamagnetic material
paramagnetic material

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Magnetism and Electromagnetism
A square cross-sectional magnet has a pole strength of 1 x 10 Wb and cross sectional area of 20 mm x 20 mm. What is the strength at a distance of 100 mm from the unit pole in air ?

633.8 N/Wb
63380 N/Wb
6338 N/Wb
63.38 N/Wb

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Magnetism and Electromagnetism
Fleming's left hand rule is used to find

Direction of magnetic field due to current carrying conductor
Direction of force on a current carrying conductor in a magnetic field
Direction of flux in a solenoid
Polarity of a magnetic pole

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Magnetism and Electromagnetism
Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials.

triangular
None of the listed here
rectangular
circular

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Magnetism and Electromagnetism
Which of the following is not a unit of flux?

All of the listed here
Weber
Maxwell
Tesla

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Magnetism and Electromagnetism
Paramagnetic materials have relative permeability

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

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MORE MCQ ON Magnetism and Electromagnetism

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