ICSE Class 10 Answered

Phase wire or hot wire is the wire that conducts electricity from the source (main supply or a battery)

to any electrical appliance that is connceted to it (also called a load).

Elements like aluminium or copper can be used in straight or coiled form.

In the above circuit diagram, the wire joining the source and the load is a phase wire.

Whereas, the wire joining load and source is a neutral wire, that completes the circuit.