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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

15 mA

C

20 mA

D

5 mA

Text Solution

Verified by Experts

The correct Answer is:
D
For Resistance element of `1kOmega`
`i_(1)=(15)/(1)=15mA`
For Resistance element of `250Omega`
`i_(250Omega)=(20-15)/(250)=(5)/(250)=(20)/(1000)=20mA`
`:.i_("zener")=20-15=5mA`
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