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Suppose that you and your roommate are sharing the electric bill in your apartment and that it comes to $60/month, at the average rate of $0.1975 per kilowatt-hour. Your roommate never turns the lights off, which you estimate results in the lights being switched on for an average of 19 hours per day - 6 hours more than needed. The room is lit with seven, 60 W incandescent bulbs, which you can assume are powered by a 115 V constant voltage source.How much does lighting cost you and your roommate per month?
The voltage V across a semi conductor in a computer is given by V= aI+BI^2, where I is the current (in A). If a 24 V battery is conducted across the semi conductor, find the current if a=4 ohms and B= 0.5 ohms/A.
an inventory control system that keeps track of what items are in stock when the level falls below a certain value ?
What is the main cause of bit errors on this digital link? At the receiver, what is the rule that is used to decide whether to output a 1 or a 0?
Design an amplifier circuit which uses an OpAmp and is powered by dual 15 V power supplies, and which has the following characteristic at low frequencies: Vout = 3V1 - 5V2 1. State the information which is extracted from the equation.
A resistance of 40 ohms is connected in series with an inductance of 0.12 H. Calculate the current, power, reactive power, apparent power, and power factor when the combination is connected to a 60 Hz, 120 V source.
design two decoding circuits that eash produces a high output when only four input lines A-D that have a specific value. The first circuit should have high output witha value of 5. and the second will have a 9. The chips i will be usinf is 7400 an..
An AAC is composed of 37 strands, each having a diameter of 0.333cm. Calculate the DC resistance in ohms per km at 75oC. Assume that the increase in resistance due to spiralling is 2%.
Determine the peak-to-peak current ripple in the output inductor for a forward converter and determine the output voltage ripple of the converter . We know the following parameters: duty cycle d, input voltage Vin, turn ratio: N1/N2
A given low pass filter has a cutoff frequency fc and a sample frequency fs. The sampling period is T = 1/fs. In implementing the filter it is essential that the evaluation of the difference equation be completed in less.
A balanced Y-connected power system is known to have Van=100
1.Name and characterize the main source working regimes and write down working regime conditions. 2.Write down the electrical source efficiency factor expression using the parameters of the source and consumer.
(1) What might be an example of an input and an output What are some simple examples of what constitutes the distinction between input into a program and output from the program (2) What type of arithmetic operations are supported in C++
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