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A Zener diode undergoes breakdown for an electric field of 10 6   V   m - 1 at the depletion region of p - n junction. If the width of the depletion region is 2.5   μm , what should be the reverse-biased potential for the breakdown to occur?

Options

  1. A3.5   V
  2. B2.5   V
  3. C1.5   V
  4. D0.5   V

Correct answer

B. 2.5   V

Step-by-step solution

Reverse biased potential for the zener breakdown V r = E d = 10 6 × 2.5 × 10 - 6 = 2.5 volt

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