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NEET2010PhysicsSemiconductorsActual

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

Options

  1. A500
  2. B1000
  3. C1250
  4. D50

Correct answer

C. 1250

Step-by-step solution

Voltage gain = impedance gain 50= 200 100 =25 Also, power gain = ^2 impedance gain =(25)^2 200 100 =1250

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