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Magnetism and Electromagnetism

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

2.4 At
240 At
2,400 At
24 At

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Magnetism and Electromagnetism
One telsa is equal to

1 Wb/mm²
1 Wb/m²
1 mWb/m²
1 Wb/m

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

Relatice permeability
None of the listed here
Susceptibility
Flux density

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Magnetism and Electromagnetism
What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m?

16 AT
8 AT
10 AT
4 AT

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Magnetism and Electromagnetism
Air gap has_______eluctance as compared to iron or steel path

lower
higher
zero
little

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Magnetism and Electromagnetism
If the steel disk in a crankshaft position sensor has stopped with the tab in the magnet's air gap, the induced voltage

Is zero
Decrease
None of the listed here
Increase

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MORE MCQ ON Magnetism and Electromagnetism

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