In the circuit diagram shown in Fig. 4.39 (i), if VCC = 12V and RC = 6 kilo-ohms, draw the d.c. load line.

      

In the circuit diagram shown in Fig. 4.39 (i), if VCC = 12V and RC = 6 kilo-ohms, draw the d.c. load line. What will be the Q point if zero signal base current is 20μA and β = 50?

  

Answers


Wilfred
- The collector-emitter voltage VCE is given by:
VCE = VCC – ICRC
When IC = 0, VCE = VCE = 12 V. This locates the point B of the load line. When VCE = 0, IC = VCC /RC = 12 V/6 kilo-ohms = 2 mA. This locates the point A of the load line. By joining these two points, load line AB is constructed as shown in Fig. 4.39 (ii).
- Zero signal base current, IB = 20 µA = 0.02 mA Current amplification factor, ß = 50

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Wilfykil answered the question on August 15, 2019 at 07:02


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