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1. |
At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V. The voltage ratio in decibels is%! |
A. | 6.02 dB |
B. | -6.02 dB |
C. | 12.04 dB |
D. | -12.04 dB |
Answer» C. 12.04 dB | |