>> For Common Emitter configuration, output characteristic are :
>> DC Load line is plotted on output characteristic, graphically to calculate the DC values of VCE and IC.
>> DC Load line obtained through KVL in output loop.
VCC – IC RC – VCE = 0
>> For a given value of Base current, the point of intersection of output characteristic and DC load line is called as operating point or Quienscent point.
>> Operating point gives the DC values of IC and VCE. [ This method is applied in industry to calculate the accurate value of VCE and IC ]
>> For a given value of RC and VCC. Thus it represents all collector current levels and corresponding collector emitter voltages that can exist in the circuit.
SELECTION OF OPERATING POINT
Case 1 : Operating point near Saturation region
Case 2 : Operating point near cutoff region
Case 3 : Operating point at the centre of Load line / Active region
>> Output signal is perfect sinusoidal means no distortions are present in output.