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
2861.2
2286.3
3048.4

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SSC JE Electrical 2018 with solution SET-1
 In a P-N junction, the potential barrier is due to the charges on either side of the junction. These charges are

Fixed donor and acceptor ions
Both majority as well as minority carriers
Majority carriers
Minority carriers

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SSC JE Electrical 2018 with solution SET-1
Which type of insulation covering the conductor used for low voltages?

Cotton and silk Insulation
Poly-vinyl Chloride(P.V.C)
Vulcanised Indian Rubber
Paper

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SSC JE Electrical 2018 with solution SET-1
 Determine the flux (in Wb) through a coil when the reluctance of the coil is 4 Amp-turns/Wb and the produced mmf is 48 Amp-turns

14
10
16
12

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SSC JE Electrical 2018 with solution SET-1
 Scott connections are used for

Any of the above
Three-phase to two-phase transformation
Three Phase to Single Phase transformation
Single-phase to three-phase transformation

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