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Electromagnetic induction

Electromagnetic induction
Two 300 uH coils in series without mutual coupling have a total inductance of

300 uH
1200 uH
900 uH
600 uH

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Electromagnetic induction
The direction of induced e.m.f. can be found by

Fleming's right hand rule
Lenz's law
Kirchhoff s voltage law
Laplace's law

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Electromagnetic induction
In case all the flux from the current in coil 1 links with coil 2, the coefficient of coupling will be

1.0
2.0
2.5
0.5

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Electromagnetic induction
The polarity of the induced voltage can be determined by using the left-hand generator rule.

No
Yes

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Electromagnetic induction
As per Faraday's laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it

Moves parallel to the direction of the magnetic field
Lies perpendicular to the magnetic flux
Cuts magnetic flux
Lies in a magnetic field

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Electromagnetic induction
Air-core coils are practically free from

None of the listed here
Hysteresis losses
Both Hysteresis losses & Eddy current losses
Eddy current losses

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MORE MCQ ON Electromagnetic induction

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