Question

Why is the series arrangement not used for domestic circuits?

Answer 1

Hint: In this question, we are asked why the series arrangement is not used for domestic circuits. In order to proceed, you should first know what is a series arrangement and how it works. Consider the definition of the series arrangement and then check all the disadvantages which will be faced if series arrangement is used, using the process of what is happening in series arrangement.

Complete answer:
First let us see what is a series arrangement. When the appliances are connected in series, they are connected one by one next to each other. So, the current that will flow in the circuit will flow in each and every appliance present in the circuit. So, as a result, the current in each appliance will be the same. It is quite obvious that in case of domestic circuits, the same current in all the appliances is meaningless.

Because there are various devices and appliances which will require different amounts of currents to flow through them, series arrangement is useless. There is only a single path of current in series arrangement. If the circuit is broken at one point, then further flow of current is not possible, meaning that none of the appliances in the circuit will work. As you know that there always exists resistance in the appliances that we use, the net effective resistance of the circuit will be the sum of all the resistances present in the circuit which will result in a very small amount of current.

Another reason we do not use series arrangement is because of on/off switches. Independent switches cannot be used since it is a series arrangement. All the appliances are to be used simultaneously even if we do not require them. Due to all the above reasons discussed, series arrangement is not used for domestic circuits.

Note: Remember the definition of the series arrangement that is when the components are connected in such a way that the current flowing through them is the same. The reasons are quite obvious, all devices do not require the same current, some require large amounts of current and some require small. Also, all are to be used simultaneously and we do not want the circuit to be broken at any point, else none of the appliances would work.