Electrical Engineering MCQs on SCR – SCR Multiple choice questions Part 5
Contents
Under normal operation of SCR, gate is
Under normal operation of SCR, gate is
- Negative with respect to cathode
- Positive with respect to cathode
- At zero potential with respect to cathode
- None of the above
Correct answer: 2. Positive
AC power in a load can be controlled by connecting
AC power in a load can be controlled by connecting
- Two SCRs in series
- Two SCRs in parallel
- Two SCRs in parallel opposition
- None of these
Correct answer: 3. Two SCRs in parallel opposition
The SCR is a solid-state equivalent of
The SCR is a solid-state equivalent of:
- Gas-filled triode
- Pentode
- Tetrode
- Triode
Correct answer: 1. Gas-filled triode
When an SCR is turned on, the voltage across it is around
When an SCR is turned on, the voltage across it is around
- Zero
- 1.37 V
- 10 V
- 1 V
Correct answer: 4. 1 V
An SCR is turned off when
An SCR is turned off when:
- Anode current is brought down to zero
- Gate voltage is brought down to zero
- Gate is reverse biased
- None of the above
Correct answer: 1. Anode current is brought down to zero