42. Find V in Fig. 10.55 if the box contains (a) 3 2 in series with 2 mH; (b) 3 in series with 125 F; (c) 3 2, 2 mH, and 125 uF in series; (d) 3 2, 2 mH, and 125 F in series, but o 4 krad/s. 31-20 A =2 krad/s FIGURE 10.55 70. Use w = 1 rad/s, and find the Norton equivalent of the network shown in Fig. 10.74. Construct the Norton equivalent as a current source Iy in parallel with a resistance Ry and either an inductance Ly or a capacitance Cy. IF V 2H 1/0 v 0.25V FIGURE 10.74