0195136047.pdf

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