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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
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.
What is meant by ‘MCB’? Which part of the domestic electric circuit does it replace?
Why should switches always be connected to the live wire? Give one precaution that should be taken while handling switches.
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 after completing the circuit shown in Figure if instead of a safety pin we use an eraser?
In which position is the key placed in a circuit?
Name the component which connects electrical components to one another.
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?
