SSC JE Electrical 2019 with solution SET-1
 Z1 and Z2 are connected in series to form a load. A wattmeter’s current coil is connected in series with the load, whereas its pressure coil is connected across Z2. The wattmeter reads

Zero always
Power consumed by Z1 and Z2
Power consumed by Z2
Power consumed by Z1

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SSC JE Electrical 2019 with solution SET-1
 Which of the following is the correct relation regarding coupled coils?

M = (L1 − L2)/2
M > (L1L2)0.5
M = (L1 + L2)/2
M ≤ (L1L2)0.5

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

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

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SSC JE Electrical 2019 with solution SET-1
 In electric traction, the coefficient of adhesion is represented by

Φ
λ
μ
γ

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