23.1 (a) 6.79 W (b) 3.5 W 23.4 (a) 4 A (b) 2 V (c) 1 ohm 23.9 (a) 0.0006 C (b) 0.2 A (c) 8.12*10^-5 C 23.11 4.8*10^7 ohm 23.25 (a) 2, 1, 1 A (b) 16, 8, -4 W (c) 4, 8, 2, 6 W 23.43 (a) 44 ohm (b) 300 ohm (c) 3800 ohm 23.57 [1+sqrt(3)] RBack to Teaching