Materials Science And Engineering
Materials Science And Engineering
10th Edition
ISBN: 9781119405498
Author: Callister, William D., Jr, RETHWISCH, David G., Jr., 1940- Author.
Publisher: Wiley,
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Chapter 17, Problem 25QAP
To determine

To explain:

For a concentration cell, why corrosion occurs at the region having the lower concentration?

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3) (30pts) An application requires a bit rate of 18.2 Kbps and an error rate of less than 104. The channel has a noise power spectral density of 10-8 W/Hz. The channel attenuates the power in the signal by 5 dB. The system uses binary PAM baseband digital communication system with the minimum required bandwidth and a roll-off factor of 0.319. a) (10 pts) What is the estimated minimum required signal power (Pt) at the transmitter?
A common measure of transmission for digital data is the baud rate, defined as the number of bits transmitted per second. Generally, transmission is accomplished in packets consisting of starting bit, a byte of information, and a stop bit. Using this approach, answer the following. a) How many minutes would it take to transmit a 512×512 image with 128 grey Levels at 300 baud? b) What would the time be at 9600 baud? c) Repeat (a) and (b) for a 1024×1024 image 128 grey levels
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