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प्रश्न
A switch is not touched with wet hands while putting it on or off. Give a reason for your answer.
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उत्तर
A switch should not be touched with wet hands. If water reaches the live wire, it forms a conducting layer between the hand and the live wire of the switch through which the current passes to the hand and the person may get a fatal shock.
संबंधित प्रश्न
Name the wire in a household electrical circuit to which the switch is connected
What is the purpose of a switch in a circuit?
The following diagram shows three lamps and three switches 1, 2 and 3 connected with two cells.
- Name the switch / switches to be closed so as to light all the three lamps.
- How are the lamps connected: in series or in parallel?
How should the electric lamps in a house be connected so that the switching ON or OFF in a room has no effect on other lamps in the same building?
What is meant by ‘MCB’? Which part of the domestic electric circuit does it replace?
What are ‘dual switches’? Mention their one main use.
Why should switches always be connected to the live wire? Give one precaution that should be taken while handling switches.
Would the bulb glow in the circuit shown in Figure?
Why is the switch put in the live wire?
What precaution do you take while handling a switch?
