0195136047.pdf

(Joyce) #1

94 CIRCUIT ANALYSIS TECHNIQUES


+
V = 12.5 V−

Starter
motor

Starter switch ON

i = 60 Α

Figure 2.8.3Simplified circuit model for the automo-
tive starter circuit.

Problems


2.1.1(a) Determine the Thévenin and Norton equiva-
lent circuits as viewed by the load resistance
Rin the network of Figure P2.1.1.
(b) Find the value ofRif the power dissipated by
Ris to be a maximum.
(c) Obtain the value of the power in part (b).

2.1.2Reduce the circuit of Figure P2.1.2 to a Thévenin
and a Norton equivalent circuit.
*2.1.3Find the Thévenin and Norton equivalent circuits
for the configuration of Figure P2.1.3 as viewed
from terminalsa–b.

a

b

4 Ω 2 A

4 Ω 4 Ω

10 V R

+


Figure P2.1.1

a

b

4 Ω
+


4 Ω

2 Ω

6 V

+


10 V

Figure P2.1.2

a

b

3 Ω 4 Ω

1 Ω 2 Ω

48 A

Figure P2.1.3
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