For all the transistors shown below, B = 75. The results of some measurements are indicated on the figures. Find the values of the other labeled currents, voltages, and/or resistor values. +10 V +5 V +8 V +5 V Rc 10= 0.5 mA + VCE=4 V RE= 5 ΚΩ VB RB= 25 ΚΩ RC Vc=-1 V Ic RC= 4 ΚΩ Rc = 10 k RB = 20 kQ www -o Vc RB = 10 kQ www + VCE IB RE= 4 ΚΩ RE=2KQ -10 V (a) -5 V (b) -8 V (c) (d)

Figure 4 b) Figure 5 shows the silicon base BJT with a Rc = 1 kQ, Rg = 10 k2, Vcc = 11 V, VBB = 6 V, BDC = 99. Determine Ig, Ic, lE, VCE and VCB- Rc 1 ko Vc 10 kn 11 V VBB 6 V Figure 5

From the figure shown, when S1 is at 1 : up position; the following statement is not correct except: (a) Collector-emitter voltage of Q1 is approximately zero (b) the LED will illuminate (c) the base voltage of Q2 is equal to 9 V (d) (b) and (c)

What is the value of Vgs, when Id is.10 ?constant reference voltage Vdd =12V @

Calculate the transistor currents and Vce-Let Vbe(on) =0.6V and B=100 and vcc= 12v

In small-signal FETS, the DC voltage sources will be replaced by a Short circuit Current source O Open circuit Resistor

Design a bias circuit for NPN silicon transistor having a nominal B-100 to be used in voltage divider circuit with Q-point of Ic 10 mA and VCE= 10 V. Use standard valued 5% resistors and draw a schematic %3D diagram of your design

what are the transistor layer * 4 O 2 O O O O

2. The parameters for each transistor in Figure 2 are B= 100, VA = 0 and VBE = 0.7 V. Vcc = +10 V RCi = 2 kQ RC23D 4 kΩ %3D R3 = 80 kΩ 85 k2 C3 Vol Q1 Cc2 Q2 R2 = 20 kQ RL = 4 kQ R4 = %3D Vs REI = 1 kΩ RE2= C0.5 k2 15 kN CE1 CE2 Figure 2 (а) What is the purpose of RC coupling? (a) Determine the values of Icqi and VCEQI. (b) Find the small signal parameters for both transistors. (c) Sketch and label the AC equivalent circuit for multistage amplifier circuit shown in Figure 2. (d) Determine the value of small signal voltage gain, Av for multistage amplifier circuit in Figure 2.

In a certain transistor circuit, the base current is 2 percent of the 30 mA emitter current. Determine the collector current. Choices are: 29.4 mA 30.02 mA 0.6 mA