13. Refer to the class AB amplifier in Figure 7-44. (a) Determine the de parameters VB(Q1), VB(Q2), VE, ICQ, VCEQ(Q1), VCEQ(Q2). (b) For the 5 V rms input, determine the power delivered to the load resistor. FIGURE 7-44 +Vcc +9 V V₁ 5.0 V rms Σ R₁ 1.0 ΚΩ D₁ D2 Q2 R₂ 1.0 ΚΩ Vout ww -Vcc -9 V RL 50 Ω