25. For the network of Fig. 2.170, sketch v, and determine Vac- *26. For the network of Fig. 2.171, sketch v, and ig. 2 k2 10 V I kQ + V, 120 V (ms) Ideal 1 k2 --10 V FIG. 2.170 Problem 25. FIG. 2.171 Problem 26. *27. a. Given Pmax 14 mW for cach diode at Fig. 2.172, determine the maximum current rating of cach diode (using the approximate equivalent model). b. Determine /max for the parallel diodes. c. Determine the current through cach diode at V using the results of part (b). d. If only one diode were present, which would be the expected result? 160 V Si 4.7 k2 68 K2 FIG, 2.172 Problem 27. E.l +