In a three phase converter, the number of notches per cycle is____________?
In a three phase converter, the number of notches per cycle is____________?
A. One
B. Three
C. Six
D. Nine
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Bidirectional semiconductor device is___________?
Bidirectional semiconductor device is___________?A. Diode
B. BJT
C. SCR
D. TRIACUnipolar modulation is generally used in____________?
Unipolar modulation is generally used in____________?A. AC – AC converters
B. AC – DC converters
C. DC – AC converters
D. DC – DC convertersTo meet high current demand we use SCRs in______________?
To meet high current demand we use SCRs in______________?A. series connection.
B. parallel connection.
C. anti parallel connection.
D. both B and C.If energy is taken from the AC side of the inverter and sends it back into the DC side, then it is known as___________?
If energy is taken from the AC side of the inverter and sends it back into the DC side, then it is known as___________?A. Motoring mode operation
B. Braking mode operation
C. Regenerative mode operation
D. None of theseThe conduction losses in IGBT is____________?
The conduction losses in IGBT is____________?A. More than that of MOSFET
B. Lower than that of MOSFET
C. Equal to that of MOSFET
D. Equal to that of BJTAn SCR is made up of silicon because?
An SCR is made up of silicon because?A. silicon has large leakage current than germanium
B. silicon has small leakage current than germanium
C. silicon has small leakage voltage than germanium
D. silicon has large leakage voltage than germanium