SSC JE Electrical 2019 with solution SET-1
 Which of the following losses is together called iron losses?

Hysteresis loss and frictional loss
Hysteresis loss and copper loss
Eddy current loss and hysteresis loss
Eddy current loss and frictional loss

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SSC JE Electrical 2019 with solution SET-1
 Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

Pmech = ωT
Pmech = (2πωT)
Pmech = (ωT)/60
Pmech = (2πωT)/60

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

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SSC JE Electrical 2019 with solution SET-1
 What would the total loss of the 2kVA transformer corresponding to maximum efficiency be, provided the transformer has the iron of 150 W and full-load copper loss of 250W?

500 W
100 W
300 W
400 W

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