Frequency response of an amplifier can be improved by ............. feedback.

Positive

Negative

Both (a) and (b)

None of these

Negative feedback improves bandwidth and flatness of frequency response with the expense of gain.
Negative feedback (or balancing feedback) occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances.

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