SSC JE Electrical 2019 with solution SET-1
 Two coupled coils with L1 = L2 = 0.5H have a coupling coefficient of K = 0.75. The turn ratio N1 ⁄ N2 = ?

1
0.5
2
4

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SSC JE Electrical 2019 with solution SET-1
If the field of the synchronous motor is under excited the power factor will be:

Lagging
Leading
Unity
Zero

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SSC JE Electrical 2019 with solution SET-1
 If an alternator is operating at unity power factor, then its terminal voltage is

Greater than the induced EMF, with negative voltage regulation
Less than the induced EMF, with negative regulation
Equal to the induced EMF, with zero voltage regulation
Less than the induced EMF, with positive voltage regulation

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SSC JE Electrical 2019 with solution SET-1
 Which motor is referred to as a universal motor?

Shunt
Single-phase induction
Series
Synchronous

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SSC JE Electrical 2019 with solution SET-1
 If admittance Y= a + jb, then a =?

Reactance
Conductance
Susceptance
Resistance

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SSC JE Electrical 2019 with solution SET-1
 Is it possible to have current in a transmission line, under no-load conditions?

Yes, because of the capacitance effect
Yes, because of skin effect
No, because of the proximity effect
Yes, because of the corona effect

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