1. In forward-bias portion of the thyristor’s V-I characteristics, the number of stable operating regions is
- One
- Two
- Three
- None of these Answer: One
2. The dv/dt effect in SCR can result in
- low capacitive charging current
- false triggering
- increased junction capacitance
- high rate of rise of anode voltage SCR
- Answer: low capacitive charging current
3. The Snubber circuit is used in thyristor circuits for
- Triggering
- dv/dt protection
- di/dt protection
- Phase shifting
- Answer: Triggering
4. A UJT has
- Stable negative resistance characteristics
- Low firing current
- Use as a waveform generator
- All of these UJT
- Answer: Stable negative resistance characteristics