A residential water pump has a FLC of 15 amps, a source voltage of 240 volts, and the voltage at the pump is 235 volts. What is the power loss in the conductors?

To determine the power loss in the conductors, we first calculate the current flowing through the circuit and the voltage drop. The full load current (FLC) of the pump is 15 amps, and the voltage at the pump is 235 volts. Therefore, the power consumed by the pump can be calculated using the formula:

Power (P) = Voltage (V) x Current (I)

This gives us:

P = 235 volts x 15 amps = 3525 watts

Next, we find the power that would have been consumed if the voltage at the source, which is 240 volts, was the voltage applied to the pump at full load. Thus:

Power at source = 240 volts x 15 amps = 3600 watts

Now, the power loss in the conductors can be calculated by finding the difference between the power at the source and the power consumed by the pump.

Power Loss = Power at Source - Power at Pump

Calculating this:

Power Loss = 3600 watts - 3525 watts = 75 watts

Thus, the power loss in the conductors is 75 watts. This is why selecting this choice is correct; it accurately reflects the actual loss of energy due to resistance