2. a. For the common-emitter characteristics of figure below , find the dc beta at an operating point of VCE = 6 V and Ic 2 mA. b. Find the value of a corresponding to this operating point. C. At VcE = 6 V, find the corresponding value of ICEO - d. Calculate the approximate value of ICRO using the dc beta value obtained in part (a). tlc (mA) 90 µA 80 uA 7 VCE = 1 V VCE = 10 V 70 μΑ 6. 60 μΑ 100 50 µA VCE = 20 V 90 aturation region) 5 40 μΑ 80 70 30 μΑ 60 50 (Active region) 20 µA 40 2 30 10 µA 20 10- Ig = 0 µA 20 VCE (V) 0.2 0.4 0.6 0.8 1.0 VRE (V) 10 15 (Cutoff region) ICEO = BICBO

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