SSC JE Electrical 2019 with solution SET-1
 A single-phase circuit’s power factor can be measured with a/an

Combination of a voltmeter, ammeter, and wattmeter
Wattmeter alone
Energy meter alone
Combination of a voltmeter and ammeter

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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?

500 W
300 W
100 W
400 W

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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:

0.4 mWb
0.04 mWb
0.004 mWb
4 mWb

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SSC JE Electrical 2019 with solution SET-1
 Which of the following voltage range is used in medium transmission lines?

20 kV to 100 kV
More than 200 kV
Less than 20 kV
50 kV to 200 kV

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SSC JE Electrical 2019 with solution SET-1
 Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

Pmech = (ωT)/60
Pmech = (2πωT)/60
Pmech = (2πωT)
Pmech = ωT

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