电路英文习题库----chapter10.pdf

文档介绍：Basic Circuit Theory
Chpter10 Problems
1 The physical construction of three pairs of coupled coils is shown in Fig. 10-16 . Show two
different possible locations for the two dots on each pair of coils.
••
2 For the circuit illustrated in Fig. 10-17 (a) find I A and V B ; (b) repeat if a 6 Ω resistor is
connected between the terminals at the right.


1 3 1 2

1 3

2 4
2 4 3 4
(a) (b) (c)
Fig. 10-16 For .
•
10 Ω 4H i 1 i i
I A + k = x k = 1 2
+
+ 3H • v
/ 0°V - 5H
100 V B 5H 20H 8HH 18
ω= 5rad / s -
-

Fig. 10-17 For . Fig. 10-18 For .
3 Let i 1 = 5 sin 40t A and i 2 = 2 sin 40t A in Fig. 10-18. Find i x (t) and v(t). Is the direction of
average power flow to the right or to the left in the center of the circuit?
4 If the circuit shown in Fig. 10-19 is series resonant at ω r = 1k rad/s find C and Q.

10Ω C k = 20 Ω k 2 Ω

+ Z
• in 100mH 25mH
1H 4H Z L
- V s 10Ω

Fig. 10-19 For . Fig. 10-20 For .

5 In Fig. 10-20, let Z L be a 4 µ F capacitor having an – j25 Ω and calculate Z in when k = (a) 0;
(b) ; (c) 1.
6 Find the average power delivered to each resistor in the circuit shown in Fig. 10-21.

1 : a
+ +
3 Ω 1 : 2 ••
V 1 V 2
- -
+ 12 Ω 36 Ω
+
5 Ω-
- 30/ 0°V x
120/ 0°V
2 Ω
5 : 1 y

Fig. 10-21 For . Fig. 10-22 Fo