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

Correct Answer - D
Voltage across zener diode is constant

`(i)_(kOmega)=(15"volt")/(1kOmega)=15mA`
`(i)_(250kOmega)=((20-15)V)/(250Omega)=(5V)/(250Omega)=(20)/(1000)A=20mA`
`:. (i)_("zener diode")=(20-15)=5mA`

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

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