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NEET2018PhysicsSemiconductorsActual

Assume that each diode shown in the figure has a forward bias resistance of 50 and an infinite reverse bias resistance. The current through the resistance 150 is

Options

  1. A0.66 ~A
  2. B0.05 ~A
  3. Czero
  4. D0.04 ~A

Correct answer

D. 0.04 ~A

Step-by-step solution

In the circuit, diode D₁ is reverse biased and offers infinite resistance, diode D₂ is forward biased and offers 50 resistance. The equivalent circuit is shown in the figure. Total resistance of the circuit, R=50 +50 +150 =250 The current in the circuit, I= V R = 10 ~V 250 =0.04 ~A So, current through the resistance 150 is 0.04 ~A .

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