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MHT CET202620 April 2026Morning ShiftPhysicsSemiconductorsActual

In a common emitter transistor amplifier, AC current gain is 65 , the load resistance is 5400 , and input resistance of the transistor is 450 , . The voltage gain is

Options

  1. A460
  2. B540
  3. C780
  4. D7800

Correct answer

C. 780

Step-by-step solution

Given: AC current gain, = 65 Load resistance, R_L = 5400 , Input resistance, R_ in = 450 , The voltage gain A_v of a common emitter amplifier is given by: A_v = R_L R_ in Substituting the given values: A_v = 65 5400 450 A_v = 65 12 A_v = 780 Answer: 780

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