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AP EAMCET202422 May 2024Evening ShiftPhysicsSemiconductorsActual

If R_C and R_B are respectively the resistances of in collector and base sides of the circuit, and is the current amplification factor, then the voltage gain of a transistor amplifier in common emitter configuration is

Options

  1. AR_C R_B
  2. BR_C R_B
  3. CR_B R_C
  4. DR_C R_B

Correct answer

D. R_C R_B

Step-by-step solution

The voltage gain of a CE configuration transistor is A_V= V_O V_I = V_C V_B = I_C R_C I_B R_B = ( I_C I_B ) ( R_C R_B )= R_C R_B

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