Difference between Neutral and Ground

Very often we about the Neutral, the Ground and the earth. Today you’ll learn the difference between neutral and ground.

Let’s consider a series circuit with a resistor and a voltage source. Assuming the current as conventional, it flows from the positive terminal of battery moves through the resistor and flows back to the source. The return path from the resistor to the negative terminal of the battery is the neutral path. Remember that the neutral path represents a returning path from which the current flows back to the circuit. Sometimes the term ground is used in such circuit to represent a common point. However, technically, it is technically not a ground.

In industrial and residential circuits the neutral is connected to the earth ground. This is usually done through a metal rod which is installed in the ground. The earth ground is installed to protect the circuit against faults. An earth ground is actually a rod which has very small resistance and which provides an alternative path for the fault current. The video below further clears the difference between Earth and Neutral:

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