SSC JE Electrical 2018 with solution SET-1
 A 40KVA transformer has a core loss of 450 W and total loss of 800 W. Find the copper loss for Maximum efficiency

300 W
800 W
450 W
350 W

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SSC JE Electrical 2018 with solution SET-1
 What is the magnitude of the reactive power (in kVAR) of a balanced 3-phase delta connected system having the line voltage of 400 V and the line current of 50 A and the phase difference between the voltage and current is 53.13 degrees?

277.1
27.71
2.771
0.2771

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SSC JE Electrical 2018 with solution SET-1
The unit of luminous flux is

Lux
Lumen
Candela
Steradian

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