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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.
संबंधित प्रश्न
A switch is not touched with wet hands while putting it on or off. Give a reason for your answer.
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 are ‘dual switches’? Mention their one main use.
Complete the drawing shown in Figure to indicate where the free ends of the two wires should be joined to make the bulb glow.
Would the bulb glow in the circuit shown in Figure?
Name the component of a circuit which help us to start or stop the appliances & safely and easily.
Name the component which connects electrical components to one another.
In the circuit shown in the following figure, when the switch is moved to ‘ON’ position,
Name the wire to which a switch is connected.
