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
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?
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?
What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.
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,
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.
