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प्रश्न
What is a switch? State its function in an electric circuit.
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उत्तर
A switch is an on-off device for current flowing in a circuit or in an electric appliance. The switch should always be connected in the live wire. Its main function is either to connect or disconnect an electric appliance in an electric circuit.
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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?
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 ?
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 after completing the circuit shown in Figure if instead of a safety pin we use an eraser?
Would the bulb glow in the circuit shown in Figure?
You are provided with a bulb, a cell, a switch and some connecting wires. Draw a diagram to show the connections between them to make the bulb glow.
What precaution do you take while handling a switch?
