SSC JE Electrical 2018 with solution SET-1
 Power consumed by a balanced star connected 3-phase load is measured using the two-wattmeter method. The phase voltage and phase current in the load is 220V and 10 A respectively. What will be the difference in reading (in W) of the two wattmeters, if the power factor of the system is 0.8 Lagging?

3810.5
2286.3
3048.4
2861.2

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SSC JE Electrical 2018 with solution SET-1
 Determine the percentage voltage error of a potential transformer with the system voltage of 11000 V and having a turn’s ratio of 104 if the measured secondary voltage is 98 V

7.92
8.84
5.75
6.25

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SSC JE Electrical 2018 with solution SET-1
 What will be the value of average power (in Watt) of a sinusoidal voltage applied across a series circuit is 20 sinωt V and the current flowing the circuit is 10 sin(ωt + 60)A?

100
50
60
80

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SSC JE Electrical 2018 with solution SET-1
 Determine the value of produced mmf (in Amp-turns) in a coil if the coil has a 120 turns carrying a current of 0.1 A

18
16
12
14

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