Advertisements
Advertisements
Question
What are ‘dual switches’? Mention their one main use.
Advertisements
Solution
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.
RELATED QUESTIONS
Name the wire in a household electrical circuit to which the switch is connected
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?
A switch must be connected in the ______.
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 a switch? State its function in an electric circuit.
Why should switches always be connected to the live wire? Give one precaution that should be taken while handling switches.
What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.
Would the bulb glow after completing the circuit shown in Figure if instead of a safety pin we use an eraser?
Name the component of a circuit which help us to start or stop the appliances & safely and easily.
In the circuit shown in the following figure, when the switch is moved to ‘ON’ position,
