Moderate

In capacitor start single-phase motors____________?

Correct answer: A. current in the starting winding leads the voltage

  • A. current in the starting winding leads the voltage
  • B. current in the starting winding lags the voltage
  • C. current in the starting winding is in phase with voltage in running winding
  • D. none of the above

Explanation

The capacitor in series with the starting winding makes its current lead the applied voltage, producing the phase difference needed for starting torque. Without the capacitor, the phase displacement would be much smaller.

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