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  • Question

  • Consider the common emitter amplifier shown below with the following circuit parameters: ? = 100, gm = 0.3861 A/V, r0 = ? rp = 259 ?, Rs = 1 k?, RB = 93 k?, RC = 250 ?, RL = 1 kW, C1 = ? and C2 = 4.7mF.
    Consider the common emitter amplifier shown below with the following circuit parameters: ? = 100, gm
    The resistance seen by the source Vs is


  • Options
  • A. 258 ?
  • B. 1258 ?
  • C. 93 k?
  • D. ?

  • Correct Answer
  • 1258 ? 

    Explanation
    Zs = Rs + (RB || Brs)

    rc = 2.475 = 1.258 kV

    Consider the common emitter amplifier shown below with the following circuit parameters: ? = 100, gm

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