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19 March, 10:41

You have deployed your Ethernet cable near a generator, whose heat is effecting the cable in a way that its energy is lost. If signal has a power of 2 mW before passing near the generator and it becomes 1.4 mW after passing near the generator. How much is the attenuation?

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  1. 19 March, 12:55
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    1.55 dB

    Explanation:

    Attenuation to 1.4/2.0 = 0.7 of the previous power level is a gain of ...

    10·log (0.7) = - 1.549 dB

    The signal is attenuated by 1.55 dB.
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