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?

2861.2
3048.4
3810.5
2286.3

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SSC JE Electrical 2018 with solution SET-1
The ripple factor is

RMS value/DC Value
Peak Value/DC Value
Peak Value/RMS Value
RMS Value/Peak Value

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SSC JE Electrical 2018 with solution SET-1
The unit of luminous flux is

Lux
Steradian
Candela
Lumen

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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
80
60
50

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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?

40
20
30
10

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