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A zener diode, having breakdown voltage ...

A zener diode, having breakdown voltage equal to `15 V` is used in a voltage regulator circuit shown in the figure. The current through the diode is

A

`10 mA`

B

`15mA`

C

`20 mA`

D

`5 mA`

Text Solution

Verified by Experts

The correct Answer is:
D
For `I 1 k Omega`
`i_(1)=15/1=15 mA`
For `II 250 Omega`
`i_(250 Omega)=(20-15)/250=5/250=20/1000=20 mA`
`:. i_(Zen er)=20-15=5mA`
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