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 magnetic field strength (in A/m) of a material when the intensity of magnetization of the material is 0.084 Amp/m and the magnetic susceptibility of the material is 0.0012

0.07
0.7
700
70

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SSC JE Electrical 2018 with solution SET-1
 A zero watt Lamp consumes

About 25 to 30 W  Power
About 5 to 7 W power
About 15 to 20 W power
No power

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SSC JE Electrical 2018 with solution SET-1
 Tellegen’s theorem is based on the principle of law of_______

Conservation of Mass
Conservation of charge
Conservation of Energy
Conservation of Velocity

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SSC JE Electrical 2018 with solution SET-1
 Which of the following is the CORRECT formula for permeance?

B/H
Fm/L
I/H
φ/Fm

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SSC JE Electrical 2018 with solution SET-1
 Which one of the following is a passive element to an electric circuit?

Resistors
Current source
Voltage source
Battery

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