engineering computer science MCQ #432

A signal travels from point A to point B. At point A, the signal power is 100 W, and at point B, it is 50 W. What is the attenuation in dB?

engineering computer science MCQ #432

  1. Question 1

    Q1. A signal travels from point A to point B. At point A, the signal power is 100 W, and at point B, it is 50 W. What is the attenuation in dB?

    • A) -3 dB
    • B) 3 dB
    • C) -10 dB
    • D) 10 dB

    Answer: -3 dB

    Explanation: Attenuation (dB) = 10 log10(P2/P1) = 10 log10(50/100) = 10 log10(0.5) = -3 dB.