Domestic electrical wiring is basically a

Domestic (household) wiring is arranged so that each appliance is connected across the live and neutral wires with its own switch, ensuring each device receives the full supply voltage and can be operated independently; this is the defining feature of a parallel connection [1]. Textbooks and practical wiring guides explicitly state that household outlets, lights and fixed circuits are connected in parallel so that turning one appliance off does not interrupt others and each has the same potential difference across it [2]. Safety elements such as fuses and consumer units protect these parallel circuits from overloads while preserving independent operation of individual branches.

Sources

1. [1] Science , class X (NCERT 2025 ed.) > Chapter 12: Magnetic Effects of Electric Current > 12.4 DOMESTIC ELECTRIC CIRCUITS > p. 205
2. [2] https://www.bbc.com/bitesize/guides/z2h4dxs/revision/4