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प्रश्न
Answer the following question:
What is overloading? When does it occur? How can overloading be avoided?
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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
When does short circuiting take place?
What happens to the flow of electric current during a short circuit?
Name safety measures commonly used in electric circuits and appliances.
What precaution should be taken to avoid the overloading of domestic electric circuits?
What is the function of an earth wire?
Draw a circuit diagram to show how a soft iron piece can be transformed into an electromagnet.
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?
When does an electric short circuit occur?
Usually three insulated wires of different colours are used in an electrical appliance. Name the three colours.
Give two reasons why different electrical appliances in a domestics circuit are connected in parallel.
Fill in the following blank with suitable words:
A fuse should always be places in the ........... wire of a mains circuit.
Write the function of the voltmeter in an electric circuit.
A fuse should always be placed in the ____________.
Overloading is due to
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?
