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प्रश्न
Answer the following question:
What is overloading? When does it occur? How can overloading be avoided?
उत्तर
- When the current in the circuit exceeds, the load exceeds the specified limit and overloading occurs.
- If many electrical appliances of high power ratings such as geyser, iron, air conditioner, etc, are switched on simultaneously overloading may occur.
- The effects of overloading can be avoided by connecting a fuse in series with the circuit.
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संबंधित प्रश्न
What is overloading?
Name safety measures commonly used in electric circuits and appliances.
An electric oven of 2 kW is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do you expect? Explain.
What precaution should be taken to avoid the overloading of domestic electric circuits?
What is the function of an earth wire?
What name is given to the device which automatically cuts off the electricity supply during short-circuiting in household wiring?
Along with live wire and neutral wire, a third wire is also used in domestic electric wiring. What name is given to this third wire?
In which wire in a A.C. housing circuit is the switch introduced to operate the lights?
In household circuits, is a fuse wire connected in series or in parallel?
Usually three insulated wires of different colours are used in an electrical appliance. Name the three colours.
What is the usually colour of the insulation of :
(a) live wire
(b) neutral wire
(c) earth wire?
What is the main propose of earthing an electrical appliance?
How are the electrical appliances connected in a house circuit: in series or in parallel? Give reason.
State the voltage at which electricity is supplied to our houses.
The most important safety method used for protecting home appliances from short-circuiting or overloading is ____________.
How does an electric fuse prevent the electric circuit and the appliances from a possible damage due to short circuiting or overloading.
Why is it necessary to earth metallic appliances?
