In the circuit of Figure 2.54, the voltage source and both resistors are variable. Power/ Supply (Voltage Source) Vs Figure 2.54. Circuit for Problem 1 a. With vs 120 V, R, = 70 52, and R = 50 52, compute the power absorbed by R.. Answer: 50 w b. With vs = 120 V and R, = 02, to what value should R be adjusted so that the power absorbed by it will be 200 w? Answer: 72 2 c. With R, = 02 and R = 100 2, to what value should vs be adjusted to so that the power absorbed by R will be 100 w? Answer: 100 V