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NEET2007PhysicsSemiconductorsActual

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

Options

  1. A1000
  2. B1250
  3. C100
  4. D500

Correct answer

B. 1250

Step-by-step solution

aligned Voltage gain & =( ) ( R ₀ R _i )=50 & = 50 100 200 =25 Power gain & =(125)^2 200 100 & =(125)^2 200 100 & =625 200 100 & =1250 aligned

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