Why zener diodes are provided in dc supply?

Related MCQs

• Which of the following are not the standard value of Zener diodes?
• For excellent stability, the zener diode is kept in temperature controlled casket.
• It may be required to store energy for a specified amount of time during power failure especially if the system is designed for a computer power supply.
•                      is used in the rotating type UPS system to supply the mains.
• Which of the following can be a source of supply in dc power supplies?