Why zener diode is used as a voltage regulator?

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Tags

1. #minimum
2. #ripples
3. #current
4. #regulator
5. #value
6. #function
7. #voltage
8. #continue
9. #supply
10. #diode
11. #connected
12. #zener
13. #until
14. #diodes
15. #variation
16. #constant
17. #below
18. #spite
19. #provide
20. #parallel
21. #regulate
22. #falls
23. #output