If an averaging amplifier has 5 inputs, the ratio Rf/Ri must be:
Question
If an averaging amplifier has 5 inputs, the ratio Rf/Ri must be:
Solution
The ratio Rf/Ri for an averaging amplifier with 5 inputs must be 4. This is because the output of an averaging amplifier is the average of its inputs. The ratio Rf/Ri is equal to the number of inputs minus 1. So, for 5 inputs, the ratio Rf/Ri = 5 - 1 = 4.
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