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प्रश्न
What are ‘dual switches’? Mention their one main use.
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उत्तर
Dual switches are double pole type switches. With such switches an appliance, e.g., and electric bulb can be switched off or on from two different places. They are generally used in staircases, long corridors etc.
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?
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?
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?
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?
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.
