Question

In domestic electrical circuit, switches are used in
A. Neutral wire
B. Earth wire
C. live wire
D. All of these

Answer 1

Hint: In the question we are asked that out of neutral wire, earth wire and live wire which of the wire in domestic electrical circuit is connected to switches by using the basic knowledge about domestic circuit region and all the wires mention above we can get to know that which is used in switches.

Complete answer:
Domestic circuit wiring is the electric circuit wiring in houses and structures in our homes electricity is transported by a pair of insulated copper or aluminum wires. In domestic electric system in a typical home there are three kinds of basic wire that are;
-Live wire
-Earthing wire
-Neutral wire

Live wire is generally red in color while earthing wire green color and neutral wire are black in color. Alternating current is used to supply electricity for domestic purposes by power distribution companies.Live wires are the main wire which carries current to our appliance. Live wires are maintained at a potential difference of 220 V while neutral wire potential difference is maintained at 0 V.

While earthing wire is used to protect the domestic circuit. Switches are connected in live wire. The reason why it is used is because when the switch is in off position, no current flows through the circuit. As a result, there will not be any danger of electrical shock.

Hence, the correct option is C.

Note: Many of the people will make the mistake by considering the ambient wire but it is to be noted that neutral is the same as ambient wire along with this question is asked taking India as reference as these colors of wires are used in India along with this the potential difference may differ in other countries.