If a voltage source has an unloaded output voltage of 2 Vpp (with an output impedance of 5000) is connected to a voltage amplifier, with an input impedance of 1000N and a voltage gain of 5, what will the unloaded output voltage of the amplifier be? Give your answer in Vpp to 2 decimal places.

An amplifier circuit shown in the figure. Power rails are ±20 V. What is its output voltage? Express your result in V, keep 3 significant digits. Vin= 2 V 2 k2 o + Vout Vin 4 kQ

Perform the power analysis for the amplifier shown in Figure #1 and determine the efficiency of the amplifier. 1. VCC 40V R1 1kO C1 Q1 2N3904 10µF D1 Vin C3 o Vout 10µF D2 C2 RL Q2 100 10µF 2N3906 R2 1kQ 40V VEE Figure #1

Q3) The figure below shows the small single equivalent circuit of a single stage transistor amplifier. The transistor has the following small signal parameters: hie 3 ko, hfe = 90 = 22 ΚΩ 8 ΚΩ hie hfeib 4.7 ΚΩ Vo Vi e The input signal to the amplifier, vi, is a sinewave of 20 mV amplitude at a frequency of 1 kHz. Assuming that the reactance of C is small at 1 kHz, calculate i) the amplitude of the base current signal ib, ii) the amplitude of the collector current signal, iii) the amplitude of the output signal vo, iv) the input impedance of the amplifier. The amplifier is to amplify signals down to a frequency of 40 Hz. Determine an appropriate value for C.