SOLUTION

When the neutral wire of the phase is shorted, the most likely effect is the High current will flow and fire.

• Normal Circuit Operation: In a normal AC circuit, the current flows from the live (phase) wire through the load (appliance) and returns through the neutral wire. The neutral wire provides a return path for the current.

• Short Circuit: When the neutral wire is shorted (meaning it comes into direct contact with the live/phase wire), it creates a path of very low resistance. This allows a very large current to flow. This is because the load (appliance) is bypassed, and the only resistance is the very small resistance of the wires themselves.

• High Current Flow: The low resistance path results in a significant increase in current, often far exceeding the normal operating levels. This can lead to overheating of wires and components.
• Fire Risk: The excessive current can generate heat, which poses a serious risk of fire. If the circuit protection devices (like fuses or circuit breakers) fail to operate correctly or are not present, this high current can cause insulation to melt and potentially ignite surrounding materials.