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
- A6 10⁴
- B3 10⁴
- C9 10⁴
- 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