Chapter 9, Problem 16P

Determine the Thevénin equivalent circuit for the network external to the resistor R in Fig. 9.140.

b. Find the current through the resistor R if its value is 20 $\Omega$ , 50 $\Omega$

, and 100 $\Omega$

c. Without having the Thévenin equivalent circuit, what would you have to do to find the current through the resistor R for all the values of part (b)?

Fig.9.140