The voltage drop is the difference between the two readings.
Since the voltage drop is proportional to the current, the fan may not start.
Most circuits in a house do not have enough current or length to produce a high voltage drop.
A voltage drop across the fuse is usually provided by its manufacturer.
This current also generates a voltage drop across the force wires themselves.
This is because of the voltage drop due to the load.
This allows for the voltage drop between equipment and supply.
As these resistors are in series, the voltage drops will add.
However, in this example, half of that voltage drop is across the electrode.
This lower voltage drop can provide higher switching speed and better system efficiency.