421 The circuit parameters in Figure P421 are RB = 100 k, RC = 3:3 k, ...

4–21 The circuit parameters in Figure P4–21 are RB = 100 kΩ, RC = 3:3 kΩ, β = 100, Vγ = 0:7 V, and VCC = 15 V. Find iC and vCE for vS = 0:5 V. Repeat for vS = 4 V and 6 V.

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RB www VS RC ww ic + + VCE Vcc +1 FIGURE P4-21