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MHT CET20249 May 2024Morning ShiftPhysicsSemiconductorsActual

For the diagram shown, the resistance between points A and B when the ideal diode ' D ' is forward biased is ' R₁ ' and that when reverse biased is ' R₂ '. The ratio R₁ R₂ is

Options

  1. A2 3
  2. B2 5
  3. C3 2
  4. D5 2

Correct answer

B. 2 5

Step-by-step solution

When the diode is forward biased, current will flow through both the arms. The effective resistance is R ₁= 40 60 100 = 2400 100 =24 When the diode is reverse biased, current will flow only through the bottom arm. The effective resistance R ₂ is 60 . R ₁ R ₂ = 24 60 = 2 5

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