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  • I have a doubt, kindly clarify. A zenerdiode having breakdownvoltage equal to 15 V, is used in a voltage regulatorcircuit shown in figure. the current through the diode

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

  • Option 1)

    10mA

  • Option 2)

    15mA

  • Option 3)

    20mA

  • Option 4)

    5mA

 

Answers (1)

best_answer

Net Voltage = 20V

Voltage across 1 K\Omega= Voltage across Zener diode = 15 V

Current through 1 K \Omega = 15 m A

If current through 250 \Omega is I, then voltage across 250 \Omega is P 5V. 

\Rightarrow I = \frac{5}{250}= 20 mA

\therefore current \ through \ dioxide = 5mA


Option 1)

10mA

This option is incorrect

Option 2)

15mA

This option is incorrect

Option 3)

20mA

This option is incorrect

Option 4)

5mA

This option is correct

Posted by

Plabita

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