In an amplifier, the power output is 2 W at 5 kHz and 0.5 W at 50
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Question:
In an amplifier, the power output is 2 W at 5 kHz and 0.5 W at 50 Hz. If the input power is constant at 10 mW, what is the variation (approximate) of power gain in dB at two frequencies? (log10 2 ≈ 0.30)
A. 7dB
B. 6dB
C. 7.5dB
D. 3.5dB
Related Book For
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
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