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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?

2,400 At
2.4 At
24 At
240 At

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Magnetism and Electromagnetism
The susceptibility of paramagnetic materials generally lies between

KT3 and 1CT6
10"2 and KT5
KT4 and KT8
1CT3 and 1CT7

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Magnetism and Electromagnetism
The unit of flux is the same as that of

Permanance
Reluctance
Pole strength
Resistance

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Magnetism and Electromagnetism
The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is

proportional to X
proportional to 7
inversely proportional to I
proportional to distance between the conductors

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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?

2.4 At
2,400 At
24 At
240 At

ANSWER DOWNLOAD EXAMIANS APP

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 ?

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

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