SSC JE Electrical 2019 with solution SET-1
 The ratio of conductor voltage and the voltage across the disc nearest to the conductor multiplied by the number discs are

String efficiency
Disc efficiency
Insulator efficiency
Transmission line efficiency

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SSC JE Electrical 2019 with solution SET-1
A three-phase induction machine, when it is operating like a motor, the range of slip is given by

0 > s > −1
−1 > s > −2
1 < a < 2
0 ≤ s ≤ 1

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

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

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SSC JE Electrical 2019 with solution SET-1
 Three lamps are connected in series across a 120V supply and take a current of 1.5A. If the resistance of two of the lamps is 30Ω, what is the resistance of the third lamp?

40Ω
20Ω
30Ω
10Ω

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