(a) In one sentence, explain why a voltage level Vy is required to turn on a diode in the forward- biased configuration. (b) Refer to the circuit in Figure 1.1 below: +5 V 20 kQ o Vo Int VD -5 V...

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Extracted text: (a) In one sentence, explain why a voltage level Vy is required to turn on a diode in the forward- biased configuration. (b) Refer to the circuit in Figure 1.1 below: +5 V 20 kQ o Vo Int VD -5 V Figure 1.1 (i) Draw the load line for the diode circuit in figure 1. (ii) Calculate Ip, given Vp is 0.65 V, and Is = 10-12 A. (iii) Determine Vo.