Junior Member level 3
how input and output resistances characterise the amplification quality of an amplifier? It may sound a little bit novice to ask but I am really truing to know all about amplifier so please explain.
your output and input resistance should match the output and input source/load... that's the key to achieve max power transfer and efficiency
Yes, agreed - however, only in case your goal is max power transfer. However, my impression is that the questioner needs a voltage amplifier!.