(a) In Figure 4.1, determine (1) the total resistance Rr, the supply current Is and the voltage Vs when the switch SW is opened; (ii) the total resistance Rr when the switch SW is closed. 200 £2 ^^^ (c) Referring to the network in Figure 3.3, (0) (1) use nodal analysis to find the voltage Va and the currents I and Is; determine the power dissipated in the 2002 resistor. V₂ IT 40 Ω ww Is 2002 ww

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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need help on 4Q A & & D_A

(a)
(d)
In Figure 4.1, determine
(0)
(ii)
the total resistance RT, the supply current Is and the voltage Vs when the
switch SW is opened;
the total resistance RT when the switch SW is closed.
(i)
(ii)
Is
E = 100 V
RT
Is
0.2 A
200 £2
ww
Figure 4.1
2kQ
Figure 2.3
600 Ω
400 02
Vs
For the circuit in Figure 2.3, convert the current source to voltage source.
Sketch the modified circuit.
Determine the voltage Vab.
ww
100 Ω
4502>
Vab
OZ
www
V₂
V₁
SW
: 2 ΚΩ
21 V
400 (2
Ω
(c)
Referring to the network in Figure 3.3,
use nodal analysis to find the voltage V₂ and the currents 1₁ and la;
determine the power dissipated in the 20 resistor.
40 Ω
(1)
(ii)
V₂ 1₁ 20 22
€²
$²7-
(1)
0.6 A
0.5 A
2 V
1₁
Figure 3.3
(a) For the circuit shown in Figure 3.1, determine
(1) the currents 12 and la
(ii)
the resistance R.
8 MAT
$
1₁ = 2 mA
• 450 Ω
Figure 3.1
1₂
3.600 Ω
h
4 V
R
Transcribed Image Text:(a) (d) In Figure 4.1, determine (0) (ii) the total resistance RT, the supply current Is and the voltage Vs when the switch SW is opened; the total resistance RT when the switch SW is closed. (i) (ii) Is E = 100 V RT Is 0.2 A 200 £2 ww Figure 4.1 2kQ Figure 2.3 600 Ω 400 02 Vs For the circuit in Figure 2.3, convert the current source to voltage source. Sketch the modified circuit. Determine the voltage Vab. ww 100 Ω 4502> Vab OZ www V₂ V₁ SW : 2 ΚΩ 21 V 400 (2 Ω (c) Referring to the network in Figure 3.3, use nodal analysis to find the voltage V₂ and the currents 1₁ and la; determine the power dissipated in the 20 resistor. 40 Ω (1) (ii) V₂ 1₁ 20 22 €² $²7- (1) 0.6 A 0.5 A 2 V 1₁ Figure 3.3 (a) For the circuit shown in Figure 3.1, determine (1) the currents 12 and la (ii) the resistance R. 8 MAT $ 1₁ = 2 mA • 450 Ω Figure 3.1 1₂ 3.600 Ω h 4 V R
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