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COMEDK2023PhysicsSemiconductors

A transistor is connected in CE configuration. The collector supply is 10 ~V and the voltage drop across a resistor of 1000 in the collector circuit is 0.5 ~V . If the current gain factor is 0.96 , then the base current is

Options

  1. A25 A
  2. B20.8 A
  3. C22.5 A
  4. D15 A

Correct answer

B. 20.8 A

Step-by-step solution

Current gain factor, =0.96R=1000 , Voltage drop across collector resistor =0.5 ~V = 1- = 0.96 1-0.96 =24 Collector current, aligned i_c & = Voltage drop across collector resistor R & = 0.5 1000 =0.5 10⁻³ ~A aligned The base current, i_b= i_c = 0.5 10⁻³ 24 =20.8 A

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