Question:

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 is?

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For Zener diodes in voltage regulators, the current is determined by the supply voltage, Zener voltage, and the series resistance.
Updated On: Jan 12, 2026
  • 10 mA
  • 15 mA
  • 20 mA
  • 5 mA
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The Correct Option is D

Solution and Explanation

The current through the Zener diode can be found using Ohm's law by considering the voltage across the diode and the resistances in the circuit. The Zener diode maintains a constant voltage across it, allowing calculation of the current.
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