A 9.4 resistor and a 6.3 resistor are connected in series with a power supply.
(a) The voltage drop across the 6.3 resistor is measured to be 13 V. Find the voltage output of the power supply.
V=
(b) The two resistors are connected in parallel across a power supply, and the current through the 9.4 resistor is found to be 0.25 A. Find the voltage setting of the power supply.
V=