1. The question is asking us to figure out what the voltage drop across each load in a series circuit.
2. There is 120 vac supplying the circuit.
The first load is 10 ohms.
The second load is 20 ohms.
The third load is 40 ohms.
3. Voltage squared divided by resistance (ohms) equals watts(power)
Voltage divided by resistance (ohms) equals current (amps)
Answer: I would say V/R = A so we can find how much current(amps) is flowing through that part of the circuit.