Answered: į, = 2/2<45°A » Find Ủ,| + Ú, R a 8Ω +…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Question

i (t)  40 2 cost A
2 i (t)  30 2 cos(t  90) A2. Suppose that
Find i1 + i2。

3. A voltage source V is applied to a 100 μF capacitor.
(1)Find the impedance of the capacitor.
(2)Find the phasor current and phasor voltage.
(3)Draw the phasor diagram.
100cos200ut

4. Are the circuit voltages and impedances
given in the following diagrams correct?
Z  7Ω U=14V ? Z  10Ω U=70V ?
(a)
3
4
V1
V2
6V
8V
+
_
U 
6
8
30V
40V
(b)

5. Are the circuit currents and impedances
given in the following diagrams correct?
Z  2Ω I=8A ? Z  2Ω I=8A ?
(c)
4A
4 
4A
4 
A
2
I
A
1
(d)
4A
4 
4A
4 
A

Z1 = (3+j4) Ω, Z2 = (8–j6) Ω， U  2200 V
1 2 Find I , I , I .
Z1 Z2 U
+
–
I
1 I 2 I
，

(1). Suppose:
(3).
u= 220 cos (@t+45°)Vi = 4 e 130°
A
Then, we have
220
=4/2 cos (o t+30 °)A?
U
/45°V?
V2
U = 220 e5°V?
(4).Suppose
Ü = 100 -15°V
45°.
Then, we have
(2). Suppose: İ = 10/60 °A
U = 100 V ?
Then, we have
i=10 cos (o t+60°)A?
Ủ = 100 els v ?
||
If the equations are wrong,
please correct them.

6. i = 2/2245°A » Find Ủ,|
+ Ủ,
-
R
82
+
-j42:
j82-
S
b

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