SSC JE Electrical 2019 with solution SET-2
Two coils are said to be ‘magnetically isolated’ provided the coefficient of coupling K

Is less than one
Is equal to zero
Is less than or equal to one
Is equal to one

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SSC JE Electrical 2019 with solution SET-2
If the AC voltage and current are given by the following expressions?
v = 200sin (314t — 60°)
i = 50sin (720t), then what is the phase relation between them?

Voltage and current are in phase
Voltage lags current by 60°
Voltage leads current by 60°
Can’t be determined

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SSC JE Electrical 2019 with solution SET-2
Conductors experience skin effect in

DC transmission
Both AC and DC transmissions
AC transmission
HVDC transmission

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SSC JE Electrical 2019 with solution SET-2
Which of the following motors can be connected across a single-phase AC supply?

Cumulative compound motor
Differential compound motor
DC shunt motor
DC Series Motor

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