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A Zener diode with a breakdown voltage of 4   V is connected in series with a resistance R to a battery of emf 10   V . The maximum power dissipation rating for the Zener diode is 1   W . The value of R to ensure maximum power dissipation across the diode is

Options

  1. A12   Ω
  2. B24   Ω
  3. C36   Ω
  4. D6   Ω

Correct answer

B. 24   Ω

Step-by-step solution

P zener = 4 i = 1 ⇒ i = 1 4   A i = 6 R = 1 4 ⇒ R = 24   Ω

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