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Magnetism and Electromagnetism

Magnetism and Electromagnetism
A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be

0.24 N
240 N
2.4 N
24 N

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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
The main constituent of permalloy is

Cobalt
Chromium
Nickel
Tungsten

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Magnetism and Electromagnetism
There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 Wb?

14,400 At/Wb
9,000 At/Wb
90,000 At/Wb
1,440 At/Wb

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Magnetism and Electromagnetism
Which of the following is a vector quantity?

Magnetic field intensity
Magnetic potential
Flux density
Relalative permeability

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Magnetism and Electromagnetism
Magnetic moment is a

vector quantity
universal constant
pole strength
scalar quantity

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MORE MCQ ON Magnetism and Electromagnetism

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