SSC JE Electrical 2018 with solution SET-1
 What will be the value of average power (in Watt) of a sinusoidal voltage applied across a series circuit is 20 sinωt V and the current flowing the circuit is 10 sin(ωt + 60)A?

50
60
80
100

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SSC JE Electrical 2018 with solution SET-1
 Scott connections are used for

Single-phase to three-phase transformation
Three-phase to two-phase transformation
Any of the above
Three Phase to Single Phase transformation

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SSC JE Electrical 2018 with solution SET-1
 If a fixed amount of power is to be transmitted over a certain length with the fixed power loss then_____,

The weight of the conductor required will be proportional to the voltage
The weight of the conductor required will be inversely proportional to the voltage and that of the power factor of the load
The weight of the conductor required will be inversely proportional to the square of the voltage and that of the power factor of the load
The weight of the conductor will be proportional to the square of the voltage and directly proportional to the power factor of the load.

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SSC JE Electrical 2018 with solution SET-1
A PMMC type voltmeter, having a full-scale reading of 250 V and an internal resistance of 400 kilo-ohms, is connected with the series resistance of 100 kilo-ohms. Calculate the sensitivity of the voltmeter (in Ohms/Volts)

2400
2000
20000
24000

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SSC JE Electrical 2018 with solution SET-1
 Starting winding of a single-phase motor of a refrigerator is disconnected from the circuit by means of a

Thermal Relay
Magnetic Relay
None of these
Centrifugal Switch

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