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

800 W
450 W
300 W
350 W

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SSC JE Electrical 2018 with solution SET-1
A circuit having the power factor of 0.8 consumes 40 W. What will be the value of reactive power (in VAR) of the circuit?

10
30
40
20

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SSC JE Electrical 2018 with solution SET-1
 Determine the reluctance (in Amp-turns/Wb) of a coil, when the flux through the coil is 15 Wb and the produced MMF is 30 Amp-turns

2
4
1
3

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

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

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