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Voltage is the potential difference between the source & any point in the circuit. Voltage drop means, amount of voltage by which voltage across load resistor is less then the source voltage.
Rl - Resistance of wire need to connect to resistorRL - Load Resistancei - Current in the circuitVin - Voltage of sourceVin = V(wire)+V(load)V(wire) = I*Rl -voltage drop V(Load) = I*RL -voltage across loadthere is voltage drop in wire connected to the positive terminal of the source to load resistor.Voltage across the resistor = Potential difference between the two terminal of the resistor, which here is V(load).For AC circuit ,V(wire)= I*ZZ - Electrical Independence Z is the combination of resistance ,inductance,capacitanceVoltage drop is more AC as compare to DC
Voltage Loss test is testing for a voltage “loss” across one or more connections or components. This test is performed on “one” side of the circuit at a time – meaning to test the Positive side of the circuit, and / or then test the negative side of the circuit. A Voltage Drop test is to test for a voltage “drop” across one or more connections and components. This test is performed across both sides of the circuit and requires a component – meaning to test from the positive side of the circuit to the negative side of the circuit. This requires some sort of resistance through a load component like a light bulb or resistor, etc…
Voltage drop is a transient occurrence along along conductors or saged overhead conductors while voltage loss is an occurance of eddy current losses in in static instruments like transformers and motors as heart energy
