1. Tardigrade
  2. Question
  3. Physics
  4. For the circuit shown below, the current through the Zener diode is :

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. For the circuit shown below, the current through the Zener diode is :Physics Question Image

JEE MainJEE Main 2019Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

Assuming zener diode doesnot undergo breakdown, current in circuit = $\frac{120}{15000} = 8mA$
$\therefore $ Voltage drop across diode = $80 V > 50 V$.
The diode undergo breakdown.
Current is $R_1 = \frac{70}{5000} = 14 \,mA$
Current is $R_2 = \frac{50}{10000} = 5 \,mA$
$\therefore $ Current through diode = $9\,mA$

Solution Image