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Analog Electronics

Q1:

In figure the zener has a resistance of 5 ohms. As the load resistance is varied, the output voltage

A will remain constant at 12 V

B will vary between 12.05 and 12.65 V

C will vary from 10 to 20 V

D will remain constant at 12.05 V

ANS:B - will vary between 12.05 and 12.65 V

V0 = 12 + Iz x 5, Max Iz = 130 mA, minimum Iz = 10 mA.



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