Explore topic-wise MCQs in Power Electronics.

This section includes 3 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.

A_SEMI-CONVERTER_WITH_RLE_LOAD_AND_A_FREEWHEELING_DIODE_HAS_DISCONTINUOUS_LOAD_CURRENT_WITH_FIRING_ANGLE_‚ÂÀ√≠¬¨¬±_AND_EXTINCTION_ANGLE_‚ÂÀ√≠‚ÄÖ√¢¬ß._THE_FREEWHEELING_PERIOD_IS?$#

A. π>ωt<β
B. π>ωt<β
C. π<ωt>β
D. π>ωt>β
Answer» B. ‚âà√¨‚àö√ë>‚âà√¨‚àö¬¢t<‚âà√≠‚Äö√¢¬ß
Discussion
2.

A semi-converter with RLE load and a freewheeling diode has discontinuous load current with firing angle α and extinction angle β. If β < π and Vm sinβ < E then$#

A. the converter operates as a line commutated inverter
B. the conduction period is absent
C. the freewheeling period is absent
D. none of the mentioned
Answer» D. none of the mentioned
Discussion
3.

In a semi-converter with RLE load during the freewheeling period, the energy is

A. fed back to the source
B. fed to the inductor(L) and absorbed by E
C. absorbed by the L & E and dissipated at R
D. fed to the L & E and dissipated at R
Answer» E.
Discussion