Given that Vs1 is 11 V, Vs2 is 20 V, Is is 4.5 A, R1 is 12 Ohm, R2is 26 Ohm and R3 is 41 Ohm. Use the source transformations to reduce the circuit to a single voltage source in series with asingle resistor.
(A) What is the value of single voltage source .(Unit:V)
(B) What is the value of singleresistor in series. (Unit: Ohm)