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Verified answer
Diket :TI2 - TI1 = 20 dB
Tanya :
I1 : I2 = __ : __?
Jawab :
TI2 - T1 = 20
10 log (I2/Io) - 10 log (I1/Io) = 20
log (I2/Io) - log (I1/Io) = 2
log [(I2/Io) / (I1/Io)] = 2
log (I2 / I1) = 2
log (I2 / I1) = log 100
I2 / I1 = 100
Maka :
I1 : I2 = 1 : 100
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FZA