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A corporation has a pool of six firms, four of which are local, from which it can purchase certain supplies. If three firms are randomly selected without replacement, find the probability that
a At least one selected firm is not local.
b All three selected firms are local.
The address lines (A0-A7) are checked with a logic probe and all areindicating pulse activity, except for A3 which shows a constantHIGH, and A7 which shows a constant LOW; the select lines, S0 andS1 are checked and S0 shows pulse activity, while S..
An unknown resistance Rx is connected in series with a 100 ohm resistor and a 120 V power supply. There are 2 values of Rx that will cause this resistance to dissipate 25 Watts of power. Find these 2 resitance values.
We wish to design the differentiator of Fig. 8.52 for a pole frequency of 100 MHz. If the values of R1 and C1 cannot be lower than 1 k Ω and 1 nF, respectively, compute the required gain of the op amp.
A mini-mart has just installed a bar codereader to improve efficiency at their checkouts. Assume that the bar code is to access a filethat store the product descriptions, unit price and quantity of each product sold in the shop.
assuming positive-sequence operation,calculate the exact abcd parameters of the line.compare the exact B parameter with that of the nominal II circuit.also compare the equivalent and nominal II circuit for the line.
a digital channel is described by 16 QAM, the data rate is 50 Mbps, the bandwidth is 200 MHz, the power is 1 W, and the received noise level is 50 mW. Resolve for SNR, Baud Rate and the Max theoretical bit rate for the channel.
An idustrial plant uses two pieces of equipment. A) A lightining element that comsumes 10 kw when supplied at 100v, 60Hz; and B) A furnance consuming 360 kw and 400 KVAR when supplied at 2000v, 60Hz.
Design and sketch a band pass filter consisting of an RC high-pass filter with a cutoff frequency of 300 Hz and an RC low-pass filter with a cutoff frequency of 700 Hz. Carefully select the R and C of each filter so that one filter does not load t..
Electrical Engineering Design Report about any topic prefer charger and inverter
Find the maximum operating range if the required minimum SNR at the output of the receiver is 10 dB, and a link margin of 30 dB is required to account for propagation into vehicles, buildings, and urban areas
Problems: 1. (a) Write the equations for the signals below in terms of unit step functions.
Find the coefficients of reflection for fresh water (with relative permittivity equal to 81) of a vertically polarized wave that hits the water surface at an incident angle of 60o.
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