Figure 5 The input is a 500 Hz, 10 V pp square wave centered about 0 V.
-Refer to Figure 5. Rc is in the circuit to balance the bias currents. A good value for Rc is
A)100 k▲
B)51 k▲
C)1.0 k▲
D)9.1 k▲

Question

Figure 5 The input is a 500 Hz, 10 V pp square wave centered about 0 V.
-Refer to Figure 5. Rc is in the circuit to balance the bias currents. A good value for Rc is
A)100 k▲ 
B)51 k▲ 
C)1.0 k▲ 
D)9.1 k▲

Quizplus · Accepted Answer

Rc is chosen to match the input bias current path resistances. A value of 9.1 kΩ is a common choice to balance these currents in practical circuits, providing a compromise between too high values (which could lead to increased noise and decreased bandwidth) and too low values (which could unnecessarily load the circuit).

Figure 5 the Input Is a 500 Hz, 10 Vpp

Figure 5 the Input Is a 500 Hz, 10 V_pp