4. 2k0 W Fig. 1.37. sup. 1 A. TV Sup. 3V Diode and superposition. Suppose that in figure 1.37, V = 9 V and V = 2 V. Find and 12, assuming that the voltage Va across the diode is 0.6 V. Now find I, and I if (a) V =9V and V= 0, (b) V= 0 and V = 2 V. Is the superposition principle satisfied? Diode and superposition. In figure 1.26, find the slope resi... tance of the diode given p = 25 /1 (mA), assuming v = 0. Hence find the DC and AC components of Vxy for small v. How large does u have to be to begin to switch off the diode? +0.6V 2k0 M 6k0 2KQ www 6k0 2k0 M 6KG v sin(2nt/T (b) (a: (C) Fig 1 26 (a) AC and DC signais applied to a circuit containing a diode, (b) and (c) DC and AC equivalent circuits for small AC signals