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Questions
1. Describe what is meant by the voltage gain of an amplifier
2, What is the primary purpose of a coupling capacitor ub transistor amplifiers?
Problems
1. If the input voltage to an amplifier is 50mV and the resulting output votage is 3V, calculate the voltage gain
2. A transistor is biased with IE= 5mA. Calculate r'eI
consider the back to back cascade of an ideal C to D and D to C converter. Both have the same sampling rate fs. Suppose that the signal being sampled is: x(t) = cos(324*pi*t - pi/4) + cos(80*pi*t - pi/4)
Considera causal LTI system. When the input to the system is u(t-5) the unilateral Laplace transform of the output is Y(s)=(e^-6s -e^-9s)/s^2 Determine and sketch the output of the system when the input is x(t) shown below:
Consider a 32-bit microprocessor whose bus cycle is the same duration as that of a 16-bit microprocessor. Assuming that, on the average, 20% of the operands and instructions are 32 bits long, 40% are 16 bits long, and 40% are only 8 bits long.
A 5-kg silicon ingot is doped with 10(^16) cm(-3) phosphorus atoms. What is the total mass of phosphorus in this ingot
Given the following continuous-time system X(t)= [1 0] x(n) + [1]u(t-0.2) [1 1] [0] Determine the pulse-transfer function if a sampling period of Ts = 0.3 is used
Design a micro grid of PV rated at 100KW of power and at 230 V AC using a PV module with the following voltage and current characteristics. Determine the following: Number of modules in a string for each PV type Number of strings in an array for ea..
The power required for traction at this velocity is 10kW. Assumed 10% drive train losses, and battery discharge efficiency is 80%. A 300V NiMH battery pack will be used for the Energy store with the following characteristics
Produce a design report for one design of the product based on one of the scenarios covered on the following pages.
a unit all for uranium has orthorombic symmetry with ab and c lattice parameters of 0.286 0.587 and 0.495 nm.
find the MIN permissible SAG for a span of 225 m using a copper conductor with 1.2 cm diameter and allowing a MAX conductor tension of 2200 kg/cm^2 . The horizontal wind pressure is 6 g/cm^2 and specific gravity of copper is 8.9
A silica fiber has an outer diameter of 125 micro meter. What is the total volume of silica for a 1-km length? This fiber is wound on a spool whose unloaded diameter is 20 em. The spool height is 10 em. Compute the diameter of the fully loaded spo..
Three amplifiers with power gains of 15, 22 and 7 ate cascaded. The input power is 120 micro-W. What is the output power of the final amplifier stage
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