SSC JE Electrical 2019 with solution SET-1
 In the full-wave rectifier circuit shown in the figure, the diodes that conduct when the positive half-wave of AC signal applied are

D4, D1
D1, D2
D3, D4
D2, D3

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SSC JE Electrical 2019 with solution SET-1
 Which of the following lamps has the shortest/less life span in working hours?

Incandescent lamp
Mercury vapor lamp
Sodium vapor lamp
Fluorescent lamp

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SSC JE Electrical 2019 with solution SET-1
  In a capacitor start single phase induction motor the current in the:

The main winding leads the voltage
Starting winding lags the voltage
Supply lines lead the voltage
Starting winding leads the voltage

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SSC JE Electrical 2019 with solution SET-1
 The average value of a sinusoidal wave is:

2 × maximum value
√2 × maximum value
0.637 × maximum value
0.5 × maximum value

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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?

100 W
400 W
500 W
300 W

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