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Battery Db

a circuit consist of 1.5v Battery and connected to it, from possitive terminal,?
is 15 ohm resistor, followed by 2 resistors in parallel, whose junction back to battery negative . What is the voltage gain or loss in dB across parallel network?
well, if Vb is battery voltage and Vr voltage acrosss resistor network then loss on the network would be 20 log (Vr/Vb)
as Vr is r/(r+15) Vb, the result would be 20log (r/(15+r)).
So it does not depend on battery voltage. If all resistors are 15 ohm (it is not clear from the question!) , then it would be 20 log(7.5/22.5)) = -9.5 dB
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3 Q Power 15's 142 db on stock battery




































































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