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NEET2017PhysicsSemiconductorsActual

In a common-emitter transistor amplifier, the audio signal voltage across the collector is 3 V. The resistance of collector is 3 kΩ . If current gain is 100 and the base resistance is 2 kΩ , the voltage and power gain of the amplifier is

Options

  1. A200 and 1000
  2. B15 and 200
  3. C150 and 15000
  4. D20 and 2000

Correct answer

C. 150 and 15000

Step-by-step solution

Current gain β = 100 Voltage gain A V = β R c R b = 100 3 2 = 150 Power gain = A V β = 150 100 = 15000

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