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Electromagnetic induction

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

900 uH
1200 uH
300 uH
600 uH

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

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

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Electromagnetic induction
In case of an inductance, current is proportional to

None of the listed here
Voltage across the inductance
Magnetic field
Both of the listed here

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Electromagnetic induction
A crack in the magnetic path of an inductor will result in

Reduced inductance
Unchanged inductance
Increased inductance
Zero inductance

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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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Electromagnetic induction
Which of the following is unit of inductance?

Ohm
Hennry
Weber/metre
Ampere turns

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MORE MCQ ON Electromagnetic induction

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