It is clear that you need a complete circuit for energy to be transferred from the source to the load. It looks like there is no practical or theoretical method of measuring that flow of energy if you only have access to one conductor.
Intuitively, I would have though that if energy is flowing...
"voltage multiplied by the in phase current to get the instantaneous power"
I didn't really specify whether it was average power or instantaneous but to simplify things, let's say it is a constant DC voltage source and a purely resistive load. My question is:
Does the question "How much...
I asked myself this question when reading about using high voltages to reduce losses in electric power transmission lines. I tried to calculate the ratio of power dissipated on a length of power line to the amount of power transmitted through the same length of power line.
Of course, I can...
In a simple circuit with a power source, electric conductors and a load, you can measure the power being dissipated by measuring the voltage across the load and multiplying by the current.
If you only have access to one conductor, for example, an electrical distribution cable, how can you...