a) Determine the Q-point value in Figure 1.2. b) Determine VB in Figure 1.2. c) How is VB affected if the transistor is replaced by one with B= 50? Vcc -12 V R1 33 k2 Rc 1.8 kN BDC = 150 R2 5.6 kN RE 560 N Figure 1.2 Question No 4 a) Determine IB, Ic, and VCE for a base-biased transistor circuit with the following values: B= 90, Vcc = 12V, RB = 22 k 2, and Rc = 1002. b) If in above problem B doubles over temperature, what are the Q-point values?