In the case of small BJT model with the common emitter, the collector current ic is 1.3 mA, when the collector-emitter voltage is Vce of 2.6 V. The output conductance of the circuit is

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  1. 2.0 mΩ
  2. 2.0 m℧
  3. 0.5 mΩ
  4. 0.5 m℧

Answer (Detailed Solution Below)

Option 4 : 0.5 m℧
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ST 1: UPSC ESE (IES) Civil - Building Materials
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Detailed Solution

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Concept:

The conductance of an amplifier is defined as the ratio of the collector current  to the collector to emitter voltage of the BJT, i.e.

IC = Collector current

Vce = Collector to emitter voltage

Calculation:

With Vce = 2.6 V and Ic = 1.3 mA, the conductance will be:

g0 = 0.5 m℧, where ℧ is the inverse of resistance (Ω).

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