multistage amplifier meaning in Hindi

It is difficult to build multistage amplifiers, oscillators.
Among other projects, students design, build and troubleshoot a multistage amplifier and build a multimeter.
"' R-C coupled "'coupling is the most widely used method of coupling in multistage amplifiers.
The performance obtainable from a single-stage amplifier is often insufficient for many applications, hence several stages may be combined forming a "'multistage amplifier " '.
"' Friis formula "'or "'Friis's formula "'( sometimes "'Friis'formula "'), named after Danish-American electrical engineer Harald T . Friis, refers to either of two formulas used in telecommunications engineering to calculate the signal-to-noise ratio of a multistage amplifier.