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What is the major difference between a bipolar and a unipolar device? Which of the transistor currents is always the largest? Which is always the smallest? Which two currents are relatively close in magnitude?
How to find the damping ratio and undamped natural frequency given a 2nd-order differential equation.
A phase modulation is used to transmit the signal s(t) = 10cos(20*pi*t) + 5sin(10*pi*t). kp = 3 rad/volts and fc = 20MHz a) What is the instantaneous frequency of the signal b) Write down the expression of the transmitted signal.
Two random variables X and Y have a joint probability density function given by f(x,y) =kxy 0
What are the essential features of an ideal op amp? Identify the terminals of an op amp. Draw its equivalent circuit. Define virtual ground and what is difference amplifier? Draw its circuit. Define C.M.R.R.
Give a different equation, in terms of the input and output, to describe the system. Is the system stable?
A container with a plunger compresses one pound mole of an ideal gas from 1 atmospheres pressure to 10 atmospheres. Calculate the amount of work done if the process is considered to be polytropic.
A star-bus hybrid topology consists of a main three branch star toplogy with each branch connecting three stations in a bus topology. This toplogy is changed to a new bus-ring hybrid topology with main five station bus topology.
1 kW heating element of a 230 V, 50 Hz electric stove is to be controlled by a triac circuit. The gate circuit of the triac uses a 0.2 mF capacitor and a diac with a break over voltage of 50 V. Calculate the adjustable resistance value to provide ..
A natural gas power plant has a condenser that extracts 28,000 Btu/kg of natural gas. Compute the mechanical energy of the turbine and the overall system efficiency
Calculate the Fermi level position relative to conduction band (Ec-Ef) and relative to valence band (Ef-Ev).
Consider a chip design using 10 mask levels. Suppose that each mask can be made with 98% yield. Determine the composite mask yield for the set of 10 masks.
Comparing Error probabilities with BPSK and QPSK systems, A BPSK system and a QPSK system are designed to transmit at equal rates; that is, two bits are transmitted with the BPSK system
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