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1. A loudspeaker transformer has a turns ratio of 20 : 1. The speaker impedance is 20Ω. Primary impedance of transformer is
(A): 0.5 K
(B): 10 K
(C): 20 K
(D): 8 K
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By: guest on 02 Jun 2017 01.08 am
. ZL 20 x 400 8000 8kΩ.
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