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प्रश्न
What is the purpose of a switch in a circuit?
उत्तर
A switch is an on-off device for current in a circuit (or in an appliance).
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संबंधित प्रश्न
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?
The diagram below shows a dual control switch circuit connected to a bulb.
(i) Copy the diagram and complete it so that the bulb is switched ON.
(ii) Out of A and B which one is the live wire and which one is the neutral wire ?
It is dangerous to connect the switch in the neutral wire. Explain your answer.
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 is a switch? State its function in an electric circuit.
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.
Name the component of a circuit which help us to start or stop the appliances & safely and easily.
Why is the switch put in the live wire?
