11. What are the different methods followed to take p-n-p-n device from its conducting state to the non-conducting state?
1. Reducing the anode current below the holding value.
2. Reducing the gate current to zero.
3. Reducing the gate voltage to zero.
4. Reducing anode voltage below the holding value.
Select the correct answer using the options given below:
1. Reducing the anode current below the holding value.
2. Reducing the gate current to zero.
3. Reducing the gate voltage to zero.
4. Reducing anode voltage below the holding value.
Select the correct answer using the options given below:
12. In an SCR circuit, the anode is grounded. The voltages at the gate and cathode at a particular working condition are measured to be -50 V and -55 V, respectively. Based on this observation, it could be inferred that
13. Which of the following statements is TRUE for DC switched mode power supply?
14. In order to make an SCR off, it is necessary to make
15. Which one of the following devices can be turned 'ON' or 'OFF' by applying gate signal?
16. The latching current of an SCR is 4 mA. Find the minimum width of gate pulse required to successfully turn on the SCR if source voltage is 100 V and inductance in the circuit is 0.1 Henry.
17. A 3-phase full wave bridge rectifier yields . . . . . . . . diodes.
18. How many diodes are present in a single phase, full-wave, mid-point convertor?
19. The turn-on time of an SCR is 5 µs. Its trigger pulse should have which one of the following?
20. Which of the following circuits can be used as a DC transformer
Read More Section(Power Electronics)
Each Section contains maximum 100 MCQs question on Power Electronics. To get more questions visit other sections.