A common emitter amplifier has a voltage gain of 50 , an input impedance of 100 Ω and an output impedance of 200 Ω . The power gain of the amplifier is

Question

A common emitter amplifier has a voltage gain of 50 , an input impedance of 100 Ω and an output impedance of 200 Ω . The power gain of the amplifier is, 500, 1000, 1250, 50

MARKS App · Accepted Answer

Voltage gain = β × impedance gain ⇒ 50 = β × 200 100 ⇒ β = 25 Also power gain = β 2 × impedance gain = 25 2 × 200 100 = 1250

Search any question & find its solution

Looking for more such questions to practice?