SSC JE Electrical 2019 with solution SET-1
________ is used to manufacture stay wire, earth wire, and structural components

Hard drawn copper
Cadmium copper
Galvanized steel
Nichrome

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SSC JE Electrical 2019 with solution SET-1
 Which of the following is the correct relation regarding coupled coils?

M ≤ (L1L2)0.5
M = (L1 + L2)/2
M = (L1 − L2)/2
M > (L1L2)0.5

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

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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:

Leading
Lagging
Unity
Zero

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