Effect of changing bias current ic on overall voltage gain

Question

Response to the following problem:

In this problem, we investigate the effect of changing the bias current IC on the overall voltage gain Gv of a CE amplifier. Consider the situation of a CE amplifier operating with a signal source having Rsig =10 kΩ and having RC ||RL = 10 kΩ. The BJT is specified to have β = 100 and VA = 25 V. Use Eq. (with ro included in parallel with RC and RL in the numerator) to find / Gv / at IC = 0.1 mA, 0.2 mA, 0.5 mA,1.0 mA, and 1.25 mA.

                               |G_v|
Observe the effect of |G_v|as IC is increased. Find the value of IC that results in = 50 V/V.