Power Electronics quiz

SCR was first developed in

• 1947

• 1957

• 1967

• 1977

Control terminal of thyristor is

• Anode

• Cathode

• Gate

• None of the above

DC-DC converter is known as

• Rectifier

• Controlled rectifier

• Chopper

• Inverter

In enhancement type MOSFET channel during the construction is

• Present

• Absent

MOSFET is a voltage controlled device.

• True

• False

• Neither true nor false

BJT is a voltage controlled device

• True

• False

• Neither true nor false

An SCR has

• Four layers

• Three junctions

• Three terminals

• All of the above

Gate terminal of an SCR is provided at

• P layer near anode

• P layer near cathode

• N layer near cathode

• N layer near anode

The name thyristor comes from

• Thyratron

• Transistor

• Thyratron + Transistor

• Thyratron + Transmitter

SCR conducts in

• Forward blocking mode

• Reverse blocking mode

• Both A and B

• Neither A nor B