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Please try the following quiz.

1. Feedback is the cornerstone of electronic amplifiers because: 2. Feedback is the cornerstone of control theory because:
it increases the gain of the amplifier there is no alternative to feedback
for the same reason as in control theory even politicians talk about it
it stabilises the amplifier there always exist modelling errors
it almost eliminates nonlinear distortion it is easy to use feedback for control

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Last Modified: 20:24:09 2003/09/04