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Electromagnetic induction

Electromagnetic induction
Reversing the field or the current will reverse the force on the conductor.

Yes
No

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Electromagnetic induction
Which of the following is not a unit of inductance?

All of the listed here
Volt second per ampere
Coulomb/volt ampere
Hennry

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Electromagnetic induction
Two coils have inductances of 8 mH and 18 mH and a coefficient of coupling of 0.5. If the two coils are connected in series aiding, the total inductance will be

38 mH
30 mH
36 mH
48 mH

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Electromagnetic induction
Which of the following inductor will have the least eddy current losses?

Powdered iron core
Laminated iron core
Air core
Iron core

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

Yes
No

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Electromagnetic induction
Which of the fpllowing inductor will have the least eddy current losses ?

Laminated iron core
Iron core
Air core
Powdered iron core

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