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MHT CET202310 May 2023Evening ShiftPhysicsSemiconductorsActual

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

Options

  1. A2: 1
  2. B1: 1
  3. C1: 2
  4. D1: 4

Correct answer

C. 1: 2

Step-by-step solution

When the diode is forward biased, current will flow through both the arms. The effective resistance is R ₁= 40 40 80 = 1600 80 =20 When the diode is reverse biased, current will flow through the bottom arm only The effective resistance R ₂ is 40 . R ₁ R ₂ = 20 40 = 1 2

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