The following figure shows a common-emitter amplifier with voltage-divider bias. Voc = 20 V Rc R Ico = 10 ma + C C2 ас HE output 10 uF = 8 V B(min) = 80 ac input VCE O 10 uF R RE CE 100 uF i) ii) iii) iv) Sketch the output voltage together with the input voltage on the same graph. Determine the d. c operating point. Determine the ac emitter resistance and the voltage at the base. Hence, determine the voltage gain of the amplifier.