6.47 A BJT operating at iB = 10 µA and iC = 1.0 mA undergoes a reduction in base current of 1.0 µA. When vCE is held constant, the corresponding reduction in collector current is 0.08 mA. What are the values of β and the incremental β or βac that apply? If the base current is increased from 10 µA to 12 µA and vCE is increased from 8 V to 10 V, what collector current results? Assume VA = 100 V. 100; 80; 1.18 mA