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

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

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SSC JE Electrical 2019 with solution SET-1
 P = ρQHg is the water power equation. Head ‘H’ is measured in meter ‘g’ gravity constant is measured in meter/second square, then the measuring unit of ‘Q’, the flow rate of water is:

Square meter per second
Meter per hour
Meter per second
Cubic meter per second

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SSC JE Electrical 2019 with solution SET-1
 In an AC network, the load connected is (10 + j10). The phase relation between the voltage applied and the current through the load is:

Voltage lags current by 45°
Voltage and current are in phase with each other
Voltage lags current by 30°
Voltage leads current by 45°

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SSC JE Electrical 2019 with solution SET-1
_____ is NOT a component in a thermal power plant

Boiler
Reactor
Chimney
Economizer

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SSC JE Electrical 2019 with solution SET-1
 In a single-phase capacitor start-and-run motor, the minimum number of capacitors to be used in it is:

1
2
3
4

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