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JEE Main 2022 (26 Jul, Shift 1) · Special Purpose Diodes

Special Purpose Diodes question from JEE Main 2022 (26 Jul, Shift 1)

Q54JEE Main 2022 · 26 JUL · SHIFT 1Medium

Special Purpose Diodes

In the circuit shown below, maximum zener diode current will be _________ mA\text{mA}.

Figure

Numerical answer type. Work it out, then open the answer.

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Answer: 9

  1. Zener current is largest at the largest input, 120120 V.
  2. I=120−604 kΩ=15I = \frac{120 - 60}{4\text{ k}\Omega} = 15 mA
  3. IL=6010 kΩ=6I_L = \frac{60}{10\text{ k}\Omega} = 6 mA
  4. IZ,max=15−6=9I_{Z,max} = 15 - 6 = 9 mA
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