Question

a series circuit contains a generator to devices and connecting wires the resistance of the two devices are 15 ohms and 10 ohms the voltage supplied by the generator is 75 volts what will be the voltage drop in the device with 10 ohms of resistance

Answer 1

Series Resistance R = 15 + 10 = 25 ohms.

Current , I = V/R = 75/25 = 3A.

Voltage drop across the 10 ohms = 10*3 = 30 volts.