A cable used to send data has an attenuation where power drops by a factor of 10
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Question:
A cable used to send data has an attenuation where power drops by a factor of 10 every 10 km. If the input power is 1 W, and the receiver can detect signals with a power of 10-4 W or more, what is the longest cable that can be used without a regenerator?
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100 km
40 km
10 000 km
10 km
Related Book For
Physics for Scientists and Engineers A Strategic Approach with Modern Physics
ISBN: 978-0133942651
4th edition
Authors: Randall D. Knight
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