A 5-ohm, an 10-ohm, and a 15-ohm resistor are connected in series. The voltage across the 10-ohm resistor is 50 volts. Determine the supply voltage. (Assume conductor resistance is negligible.)

Question

Quizplus · Accepted Answer

The Answer is Since the resistors are connected in series, the current traveling through each resistor is exactly the same.
E = IR
I = E/R = 50 volts/10 ohms = 5 amperes
ET = IRT
ET = (5 amperes)*(5 ohms + 10 ohms + 15 ohms) = 150 volts

A 5-Ohm, an 10-Ohm, and a 15-Ohm Resistor Are Connected