Question

Why gain falls at high frequency and low frequency?

Answer 1

hii dear here is ur answer_______________⤵️

● " At high frequency , the capacitors Cs offers low input impedance and thus reduce the output .
bandwidth of amplifier : the gain is constant over a frequency range . the frequencies at which the gain reduce to 70.7% of the max . are know as cut off frequency , upper cut and lower cut off frequency " .

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Answer 2

The gain falls at high frequency and low frequency:

• The low input impedance offered by the capacitor {C} present in the circuit and also the transistor gain reduces the output at high frequency are the reason off gain falling down at high frequencies.
• The gain of capacitor goes low at lower frequencies due to the reactance that is offered by Capacitor that is present in the coupling at this frequency in the circuit.
• The gain throughout the range remains static and regular, changes occur only at low and high frequency.

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