Use KVL to determine the unknown voltages in the circuit below. (Textbook Problem 2.16)
For the circuit shown in figure below, assume R1 = 9 ̐, R2 = 4 ̐, R3 = 4 ̐, R4 = 5 ̐, R5 = 4 ̐, and vs = 10 V. Find the number of nodes in the circuit, and the equivalent resistance seen by the voltage source. (Textbook Problem 2.61)