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In variable frequency, PWM gain
  • (A)  Phase lead helps to increase the phase margin of the control loop
  • (B)  Phase lag helps to increase the phase margin of the control loop
  • (C)  Phase lead helps to decrease the phase margin of the control loop
  • (D)  Phase lag helps to decrease the phase margin of the control loop
Ripple factor is the ratio of______________________?
  • (A)  Rms value of the ac component of load voltage to the dc voltage
  • (B)  Average value of the ac component of load voltage to the peak value of voltage
  • (C)  Average value of the dc component of load voltage to the ac voltage
  • (D)  Peak value of the dc component of load voltage to the ac voltage
Form factor of a rectifier is the ratio of ______________?
  • (A)  Root mean square value of voltage and current to its peak value
  • (B)  Root mean square value of voltage and current to its average value
  • (C)  Average value of current and voltage to its root mean square value
  • (D)  Peak value of current and voltage to its root mean square value