Q1: For the circuit shown in figure. Derive an expression for Av Vo/Vs at high frequency and wH for the input and output circuit. Voo Rd Vo

Problem No:2 For the network shown in Figure given below, 0.50 40 determine (a) the Norton equivalent circuit and (b) the Thevenin E, 15V equivalent circuit . [Ans: Isc=1.875A, Ry= RTH=2.4620, VTH=4.615V]

Figure 2 shows a typical BJT amplifier, with its parasitic capacitances displayed. The current gain of the transistor is B=150 and the voltage gain of the amplifier is Am =-125. The small signal resistances of the transistor are re =16 ohm and r0 = infinity, respectively. The values of resistors and capacitors in the figure are: R1 =80 kohm, R2 =20 Kohm, Rc = 2 Kohm, RE = 2 Kohm, Rs =50 W, RI=5 kohm, Cs=2 uF, Cc=2 uF, Ce =10 uF, Cbc =4 pF, Cbe = 10 pF, Cce =1 pF, Cwi = 4 pF, CWO = 9 pF, and Vcc = 20 V. a) Sketch a simplified circuit diagram of Figure 2 for high frequency analysis. b) Using the concept of "Miller effect capacitance", calculate the input and Output Miller effect capacitances of Figure 2, respectively. C) Determine the upper cut-off frequency of Figure 2 that is imposed by its input network only. d) Explain briefly the possible ways to increase the upper cut-off frequencv of this amplifier.

answer part b,c, and d

what is the difference between gain and noise gain?

I need the answer quickly

Given an input ac-voltage, v = 120 sin120πt, if the SCR Vbr is 100V, What is the fire delay angle? a. 35 degrees b. 56 degrees c. 67 degrees d. 83 degrees

Subject: Analogy Electronic and Circuit Derive Output Impedance & Voltage Gain for self bias un-bypass circuit using hybrid model