Question

Why is parallel arrangement used in domestic wiring?
(A) For getting the same potential difference across each electrical appliance.
(B) For getting different potential differences across each electrical appliance.
(C) For getting high potential differences across each electrical appliance.
(D) For getting low potential differences across each electrical appliance.

Answer 1

Hint: Parallel arrangement is used in domestic wiring so as to provide equal amount of energy to all appliances. Moreover, if fault or short circuit occurs in any circuit, it will not result in the disconnection of other circuits. This reduces the equivalent resistance and results in consumption of loss energy.

Complete step by step answer:
The usage of parallel arrangement in domestic circuits has many advantages. Each circuit will have the same potential difference which is equal to the potential difference to the supply line. As a result, each electrical appliance will work under constant voltage when two more appliances are used at the same time, each appliance will be able to draw the current as needed. The appliances having low resistance will draw higher current and vice versa.
When distribution circuits are parallel, then each circuit operates separately. So, if one of the distribution circuits gets overloaded, only the fuse in that circuit will be blown off. The other distribution circuits will remain unaffected.

So, the correct answer is “Option A”.

Note:
Most standard 120 volt household circuits in your home are parallel circuit’s outlets. Switches and light fixtures are wired in such a way that the hot and neutral wires maintain a continuous circuit pathway independent from individual devices that draw their power from the circuit.