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NEET2009PhysicsSemiconductorsActual

In the given circuit, the potential difference between A and B is

Options

  1. A0
  2. B5 volt
  3. C10 volt
  4. D15 volt.

Correct answer

C. 10 volt

Step-by-step solution

Here p-n junction is forward biased. If p-n junction is ideal, its resistance is zero. The effective resistance across A and B= 10 10 10+10 =5 ~K Current in the circuit I= 30 (10+5) 10^3 = 2 10^3 Current in each arm = I 2 = 1 10^3 ~A . Pot. diff. across A and B= 1 10^3 10 10^3=10 ~V

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