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Magnetism and Electromagnetism

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

None of the listed here
circular
triangular
rectangular

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Magnetism and Electromagnetism
A permeable substance is one

which is a strong magnet
which is a good conductor
which is a bad conductor
through which the magnetic lines of force can pass very easily

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Magnetism and Electromagnetism
What is the reluctance of a material that has a length of 0.07 m, a cross-sectional area of 0.014 m2, and a permeability of 4,500 Wb/At × m?

11 At/Wb
1111 At/Wb
111 At/Wb
1 At/Wb

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Magnetism and Electromagnetism
Which of the following type of materials are not very important for engineering applications?

Paramagnetic material
Ferro magnetic material
None of the listed here
Diamagnetic material

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Magnetism and Electromagnetism
Magnetic moment is a

scalar quantity
universal constant
vector quantity
pole strength

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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
120 mA
16 mA
1.7 mA

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MORE MCQ ON Magnetism and Electromagnetism

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