The value of Rt = 30 n and R2 = 6 n. The two batteries have the same value as each other. If the current in resistor R1 is 1.2 A, then what is the voltage across resistor R2 in Q? A new resistor R3 is added to the circuit as shown at right. How will the addition of R3 affect the power used by the circuit? a. The'olrcuit will use less power with R3 added. b. Adding R3 won't change the power of the circuit. c. The circuit will use more power with R3 added. R2 R1 R2 R1