2. Assuming a barrier potential of 0.7 V at an ambient temperature of 25°C, what is the barrier potential (VB) of the silicon diode when the junction temperature is 90°C? and at 10°C? 3. A diode has a surface-leakage current of 10 nA when the reverse voltage is 10 V. What is the surface-leakage current if the reverse voltage is increased to 100 V? In figure 2, using the 2nd approximation, calculate load current (IL), load voltage (VL), load power(PL), diode power (PD), and total power (PT). Vs RL ww 4700 12V