Verified Solution • 2025–26 Session moderate

QJEEM19Ph864f: JEE Main 2019 Physics - Class 12 JEEM19Ph864f Solution: For the circuit shown below, the current through the Zener…

For the circuit shown below, the current through the Zener diode is -

JEE Main 2019 (Online) 10th January Evening Slot Physics - Semiconductor Question 161 English

Multiple Choice Options

  • A 5 mA
  • B zero
  • C 14 mA
  • D 9 mA

Step-by-Step Verified Solution

Assuming zener diode doesnot undergo breakdown, current in circuit

= 12015000{{120} \over {15000}} = 8mA

∴\therefore   Voltage drop across diode

= 80 V > 50 V.

The diode undergo breakdown.

JEE Main 2019 (Online) 10th January Evening Slot Physics - Semiconductor Question 161 English Explanation
Current is R1 = 705000{{70} \over {5000}} = 14mA

Current is R2 = 5010000{{50} \over {10000}} = 5mA

∴\therefore   Current through diode = 9mA

Related Learning Resources & Exam Preparation

JEE Main PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring