The upper cut off frequency of an RC coupled amplifier mainly depends upon :

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KVS TGT WET (Work Experience Teacher) Official Paper

Answer 1

The Upper cut off frequency of R-C coupled multistage Amplifier is

\({f_{C - high}} = {f_2}\sqrt {{2^{1/n}} - 1}\)

where \({f_2} = \frac{1}{{2\pi RC}}\)

SSC JE EE basic electronics 2 D13

\(\begin{array}{l} {f_{C - high}} = {f_2}\sqrt {{2^{1/n}} - 1} \\ {f_{c - high}}\alpha \frac{1}{C} \end{array}\)

Thus upper – cut off frequency depends on Inter-electrode and stray shunt capacitors