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Electromagnetic induction

Electromagnetic induction
A conductor carries 125 amperes of current under 60° to a magnetic field of 1.1 tesla. The force on the conductor will be nearly

90 N
120 N
30 N
60 N

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

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

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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
0.5
2.0
2.5

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Electromagnetic induction
A coil induces 350 mV when the current changes at the rate of 1 A/s. The value of inductance is

350 mH
None of the listed here
250 mH
3500 mH

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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
The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is

36 mH
12 mH
18 mH
6 mH

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