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A point source of light is 12 cm below the surface of a large body of water (n=1.33 for water). What is the radius of the largest circle on the water surface through which the light can emerge?
A storage tank has a Diameter of 20ft and a height of 10ft. The output volumetric flow from this tank is given by fout(t)=2h(t) where h(t) is the height of the liquid in the tank. At a particular time the tank is at steady state with an input flow..
1. What is Miller capacitance What is its role in High frequency amplifier design Label all the involved variables in the Figure below and derive an expression for the Miller effect capacitances (input and output).
Economic formulas are available to compute annual payments for loans. Suppose that you borrow an amount of money P and agree to repay it in n annual payments at an interest rate of i. The formula to compute the annual payment A is
Consider a Si phtodiode that is designed for operation at 900 nm. GIven a choice of two possible AR coatings, SiO2 with a refractive ndex of 1.4 and TiO2 with a refractive index of 2.3, which would you use and what would be the thickness of the AR..
Write a brief explanation of the principles of the super-heterodyne receiver. It may help to use a simple block diagram to express the process. Explain the purpose of the Intermediate Frequency amplifiers,
Shuffle a deck of cards and pick two cards at random. Observe the sequence of the two cards in the order in which they were chosen. (a) How many outcomes are in the sample space (b) How many outcomes are in the event that the two cards are the same ..
A manufacturer specification sheet lists the transfer function of a pressure sensor as 45±5% mV/kPa with a time constant of 4±10%. A highly accurate test system applies a step change of pressure from 20 kPa to 100 kPa.
An amplifier with 40 dB of small-signal, open circuit voltage gain, an input resistance of 1M Ohm, and an output resistance of 10 Ohm, drives a load of 100 Ohm. What voltage and power gains (in dB) would you expect with the load connected
A separately excited dc motor turns at 1200rpm when the armature is connected to a 115V source. Calculate the armature voltage required so that the motor runs at 1500rpm.
e^-x=(1/e^x)=1/(1+x+(x^2/2)+(x^3/3!)+...) and compare with the true value of 6.737947*10^-3. Use 20 terms to evaluate each series and compute true and approximate relative errors as terms are added.
A student lifts a weight (W) using a motor powered by solar cells to determine the efficiency of the solar cell/motor system. On the power meter the voltage reads V and the current reads I. The student lifts the weight a distance H in a time T.
An amplifier with a voltage gain of +30db, an input resistance of 8 k ohms, and an output resistance of 2 k ohms is used to drive a 2 k
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