ELEC 225, Fall 2002
Prof. Rich Kozick
Homework 12 Answers
Problem 9.6:
(a) 483.86 cos(300t - 48.48 deg)
(b) 120.51 cos(377t + 4.8 deg)
(c) 152.88 cos(100t + 32.94 deg)
(d) 0 (zero!)
Problem 9.9:
V
0
= 46.4 /_ 34.46
o
(V)
Problem 9.13:
V
0
=
j
32 (V)
Problem 9.14:
i
0
(t) = 1.5 cos ( 5000 t + 36.87
o
) (mA)
Problem 9.18:
Z
ab
= 20 +
j
20 (ohms)
Problem 9.29:
(a) 5 /_ 72
o
(ohms)
Problem 9.31:
v
0
(t) = 50 cos ( 5000 t - 106.26
o
) (V)