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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

susceptance
permeance
reluctance
residual magnetism

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Magnetism and Electromagnetism
What is the flux density when the flux is 5.5 Wb and the cross-sectional area is 6 × 10–3 m2?

917 T
9.7 T
91 T
91.7 T

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Magnetism and Electromagnetism
What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current?

240 At
2.4 At
2,400 At
24 At

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Magnetism and Electromagnetism
What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it?

300 At
100 At
200 At
150 At

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Magnetism and Electromagnetism
Gilbert is a unit of

electromotive force
conductance
permittivity
magnetomotive force

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Magnetism and Electromagnetism
In the left hand rule, forefinger always represents

direction of force on the conductor
magnetic field
Voltage
current

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MORE MCQ ON Magnetism and Electromagnetism

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