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AP EAMCET202421 May 2024Evening ShiftPhysicsSemiconductorsActual

In n-p-n transistor circuit, the collector current is 10 mA . If 95 % of the electrons emitted reach the collector, then the base current is nearly

Options

  1. A5.3 mA
  2. B53 mA
  3. C35 mA
  4. D0.53 mA

Correct answer

D. 0.53 mA

Step-by-step solution

In n-p-n transistor, aligned & I _ C =10 ~mA , I _ C =95 % of I _ E = 95 100 I _ E & I _ E = 100 I _ C 95 = 100 10 95 =10.53 ~mA aligned Now, I _ E ^ = I _ B + I _ C I _ B = I _ E - I _ C =10.53-10=0.53 ~mA

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