(b) Why is the switch put in the live wire?
(c) What precaution do you take while handling a switch?
Solution:
A switch is a device that controls the flow of current in a circuit by turning it on and off (or in an appliance). The live wire is linked to it. Through the live wire, the appliance is linked to the high potential location. Because the circuit is complete and the neutral wire offers a return path for the current, current flows in the appliance. The circuit is broken when the switch is turned off, and no current reaches the device through the live wire.
If the neutral wire is attached to the switch, no current travels through the bulb in the off position. The appliance, however, remains linked to the high potential terminal through the live wire after the switch is turned off.
As a result, connecting a switch to the neutral wire is deceiving and dangerous.
A switch should never be touched with damp hands as a safety precaution when utilising it.