SSC JE Electrical 2019 with solution SET-1
 If the copper loss of a transformer at half full load is 400 W, then the copper loss corresponding to full load is

1200 W
400 W
800 W
1600 W

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SSC JE Electrical 2019 with solution SET-1
 The laws involved in the expression e  = −dφ/dt are

Coulomb’s and Faraday’s laws
Faraday’s and Lenz’s laws
Coulomb’s and Ampere’s laws
Faraday’s and Ampere’s laws

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SSC JE Electrical 2019 with solution SET-1
 Two decimal coils A and B of 1000 turns each lies in the parallel plane such that 80% of the flux produced by one coil links with the other. If a current of 5A flowing in A produces a flux of 0.05 mWb, then the flux linking with coil B is:

4 mWb
0.004 mWb
0.04 mWb
0.4 mWb

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

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