Question

Where the switch is connected in a circuit ?

• A. in the ground wire.
• B. in the live wire
• C. in the neutral wire
• D. in live and neutral both.

Answer 1

The correct option is B in the live wire

A switch opens or closes an electrical circuit. If the circuit is open, no electricity flows. If the circuit is closed, electricity flows through the circuit.
In our homes, we receive the supply of electric power through the main supply (mains), either supported through overhead electric poles or by underground cables. The live wire and neutral wire, coming from the electric pole, enter a box fitted just outside our house which has a main fuse.
The live wire is connected to the switch because the live wire carries a voltage of 220 V and the passage of this voltage can be disabled by switching off the circuit.