Frequency response of RC Coupled Amplifier Frequency response of R.C coupled amplifier is uniform over mid frequency range of 50 Hz to 20 KHz. The voltage gain drops off at low < 50 Hz and high > 20 KHz frequencies. The frequency response curve of RC coupled amplifier is shown in the below fig. the behaviour of the amplifier is given below. Frequency Response of RC Coupled Amplifier 1. At low frequencies (<50Hz), the reactance of coupling capacitor C C is quite high and hence very small part of signal will pass from one stage to the next stage. The reactance of C E also high at low frequencies. This high reactance cannot shunt the emitter resistance R E effectively. Due to these two factor, the voltage gain falls at low frequencies. 2. At high frequencies (>20 KHz), the reactance CV C is very small and it behaves as short circuit. This increases the loading effect of next stage and serves to reduce...