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COMEDK2014PhysicsSemiconductors

In a common base circuit, collector base voltage changes by 0.6 ~V and collector current changes by 0.02 ~mA . Then, the output resistance is

Options

  1. A6 10⁴
  2. B3 10⁴
  3. C9 10⁴
  4. D18 10⁴

Correct answer

B. 3 10⁴

Step-by-step solution

In common base circuit, change in collector base voltage, aligned &V_ C B =0.6 ~V & I_ C =0.02 ~mA =2 10⁻⁵ ~A aligned Output resistance, R_ out = V_ C B I_ C = 0.6 2 10⁻⁵ =3 10⁴

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