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electronics and communication engineering communication systems
1. The output resistance of a microphone is 20 ohms. It is to feed a line of impedance 320 ohms. To ensure maximum power transfer, the turn ratio of transformer is
(A): 16
(B): 2
(C): 256
(D): 4
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By: guest on 01 Jun 2017 11.48 pm
(20)(4)2 = 320 ohms.
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