Explore topic-wise MCQs in Power Electronics.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Power Electronics knowledge and support exam preparation. Choose a topic below to get started.

1.

Determine the distortion factor ( ) for a full bridge inverter with supply Vs = 60 V.

A. 0.8
B. 0.7
C. 0.9
D. 1
Answer» D. 1
Discussion
2.

A single phase full bridge inverter using transistors and diodes is feeding a R load of 3 with the dc input voltage of 60 V. Find the fundamental frequency output power.

A. 1200 W
B. 856 W
C. 972 W
D. 760 W
Answer» D. 760 W
Discussion
3.

A single phase full bridge inverter using transistors and diodes is feeding a R load of 3 with the dc input voltage of 60 V. Find the rms output voltage and the peak reverse blocking voltage of each transistor.

A. 30 V, 60 V
B. 30 V, 30 V
C. 60 V, 60 V
D. 60 V, 30 V
Answer» D. 60 V, 30 V
Discussion
4.

Find the distortion factor ( ), for a single phase half wave bridge inverter with dc source Vs = 1 kV.

A. 0.87
B. 1
C. 0.9
D. 0.7
Answer» D. 0.7
Discussion
5.

A single-phase half bridge inverter is connected to a 230 V dc source which is feeding a R load of 10 . Determine the average current through each SCR inverter switch.

A. 11.5 A
B. 5.75 A
C. 23 A
D. none of the mentioned
Answer» C. 23 A
Discussion
6.

A single-phase half bridge inverter is connected to a 230 V dc source which is feeding a R load of 10 . Determine the fundamental power delivered to the load.

A. 1.07 W
B. 107.2 W
C. 1.07 kW
D. 107.2 kW
Answer» D. 107.2 kW
Discussion
7.

The distortion factor ( ) is the ratio of

A. total rms output voltage to fundamental rms output voltage
B. fundamental rms output voltage to fundamental average output voltage
C. total rms output voltage to rms value of all the harmonic components
D. fundamental rms output voltage to total rms output voltage
Answer» E.
Discussion