Question

Explain why is the series arrangement not used for domestic circuits?

Answer 1

Series Connection:

1. There are two ways in which two or more circuits are connected, namely, series connection and parallel connection.
2. In a series connection, the resistors are connected in a long chain from one terminal to another of the battery.
3. Below is an illustration of series connection, where the three resistors $R_1,R_{2}and{R}_3$ are connected in series.

Domestic Circuit:

1. The circuits that are used in households are called domestic circuits.

Series arrangement is not used for domestic circuits because in a series connection:

1. If even one of the electric appliances stops working, the current flow will be stopped, and all other appliances will stop working.
2. All appliances are used through a single switch, and this implies that anyone appliance cannot be turned on/off separately.
3. All appliances work on a single voltage, but in electrical appliances used at home, for every appliance, different voltages are required.
4. The equivalent resistance becomes very high, which results in the current flowing through the circuit being very small.

Therefore, parallel connection is used in domestic circuits instead of series connection.