A 8.9 Ω resistor and a6.5 Ω resistor are connected inseries with a power supply.
a) The voltage drop across the 6.5 Ω resistor is measured to be10 V. Find the voltage output of the power supply.
b) The two resistors are connected in parallel across a powersupply, and the current through the 8.9 Ω resistor is found to be 0.25 A. Find the voltage setting of the power supply.