Explore topic-wise MCQs in Power Electronics.

This section includes 9 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.

THE_BODY_OF_AN_IGBT_CONSISTS_OF_A?$

A. p-layer
B. n-layer
C. p-n layer
D. metal
Answer» B. n-layer
Discussion
2.

At_present,_the_state-of-the-art_semiconductor_devices_are_begin_manufactured_using$

A. Semiconducting Diamond
B. Gallium-Arsenide
C. Germanium
D. Silicon-Carbide
Answer» E.
Discussion
3.

An IGBT is also know a?

A. MOIGT (Metal oxide insulated gate transistor)
B. COMFET (Conductively modulated FET)
C. GEMFET (Grain modulated FET)
D. all of the mentioned
Answer» E.
Discussion
4.

The approximate equivalent circuit of an IGBT consists of

A. a BJT & a MOSFET
B. a MOSFET & a MCT
C. two BJTs
D. two MOSFETs
Answer» B. a MOSFET & a MCT
Discussion
5.

In an IGBT, during the turn-on time

A. Vge decreases
B. Ic decreases
C. Vce decreases
D. none of the mentioned
Answer» D. none of the mentioned
Discussion
6.

Latch-up occurs in an IGBT when

A. Vce reaches a certain value
B. Ic reaches a certain value
C. Ig reaches a certain value
D. the device temperature reaches a certain value
Answer» C. Ig reaches a certain value
Discussion
7.

The static V-I curve of an IGBT is plotted with

A. Vce as the parameter
B. Ic as the parameter
C. Vge as the parameter
D. Ig as the parameter
Answer» D. Ig as the parameter
Discussion
8.

A latched up IGBT can be turned off by

A. forced commutation of current
B. forced commutation of voltage
C. use of a snubber circuit
D. none of the mentioned
Answer» B. forced commutation of voltage
Discussion
9.

When latch-up occurs in an IGBT

A. Ig is no longer controllable
B. Ic is no longer controllable
C. the device turns off
D. Ic increases to a very high value
Answer» C. the device turns off
Discussion