Advertisements
Advertisements
Question
Answer the following question:
What is overloading? When does it occur? How can overloading be avoided?
Solution
- 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.
APPEARS IN
RELATED QUESTIONS
What is overloading?
How can the effects of overloading be avoided?
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.
State whether the following statement is true or false.
A wire with a green insulation is usually the live wire of an electric supply.
What is the function of an earth wire?
What is the usual capacity of an electric fuse used (i) in the lighting circuit
What is the usual capacity of an electric fuse used in the power circuit, of a small house?
Give the symbol of an electric fuse used in circuit diagrams.
List the colours of the three wires in the cable connected to the plug of an electric iron.
When does an electric short circuit occur?
In household circuits, is a fuse wire connected in series or in parallel?
Fill in the following blank with suitable words:
A fuse should always be places in the ........... wire of a mains circuit.
Fill in the following blank with suitable words:
The earth wire should be connected to the ........... of an appliance.
How are the electrical appliances connected in a house circuit: in series or in parallel? Give reason.
Write the function of the voltmeter in an electric circuit.
A fuse should always be placed in the ____________.
Earth wire carries ____________.
