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?

300 W
500 W
100 W
400 W

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SSC JE Electrical 2019 with solution SET-1
 The law that explains about the economic size of a conductor is:

Faraday’s law
Kelvin’s law
Lamberts law
Newton’s law

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SSC JE Electrical 2019 with solution SET-1
 Which of the following is the correct relation regarding coupled coils?

M ≤ (L1L2)0.5
M = (L1 − L2)/2
M = (L1 + L2)/2
M > (L1L2)0.5

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SSC JE Electrical 2019 with solution SET-1
 The ratio of conductor voltage and the voltage across the disc nearest to the conductor multiplied by the number discs are

Transmission line efficiency
Disc efficiency
String efficiency
Insulator efficiency

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