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What is the attenuation in dB assuming I1 is the input current and I2 is the output current leaving the port?

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What is the attenuation in dB assuming I1 is the input current and I2 is the output current leaving the port? (a) 10 log10 (I1/I2) (b) 10 log10 (I2/I1) (c) 20 log10 (I2/I1) (d) 20 log10 (I1/I2) The question was posed to me during an online interview. Origin of the question is Attenuators in portion Filters and Attenuators of Network Theory Select the correct answer from above options network theory questions and answers, network theory questions pdf, network theory question bank, network theory gate questions and answers pdf, mcq on network theory pdf, gate network theory questions and solutions, network theory mcq Test , ies network theory questions, Network theory Questions for GATE EC Exam, Network Theory MCQ (Multiple Choice Questions)

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Right choice is (d) 20 log10 (I1/I2) To explain I would say: Assuming I1 is the input current and I2 is the output current leaving the port, the attenuation in dB is Attenuation in dB = 20 log10 (I1/I2) where I1 is the input current and I2 is the output current leaving the port.

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