Ac output resistance in common base configuration, Physics

AC Output Resistance in Common Base Configuration

Ratio of change in collector-base voltage ( ? V_CB) to resulting change in collector current ( ? I_C) at constant emitter current (I_E). i.e.

175_AC Input Resistance.png

Output Resistance of CB configuration is very high, of the order of several tens of kilo-ohms (≅1 M?).

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