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

350 W
800 W
450 W
300 W

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SSC JE Electrical 2018 with solution SET-1
 For a dc machine shunt resistance and armature resistance values are

High and High
Low and Low
High and Low
Low and High

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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?

30
10
40
20

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SSC JE Electrical 2018 with solution SET-1
 Under the no-load condition, the current in a transmission line is due to

Back Low from the earth
The capacitance of the line
Spinning Reserve
Corona effect

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