Advertisements
Advertisements
Question
The most important safety method used for protecting home appliances from short circuiting or overloading is
Options
earthing
use of fuse
use of stabilizers
use of electric meter
Solution
use of fuse
Explanation -
The use of electric fuse is the most important method used for protecting home appliances from short-circuiting or overloading.
Generally, thin wire with a low melting point having a specific rating is connected in series with the electric devices. When the current passing through the fuse exceeds a specific value then by the heating effect of current it melts and breaks the circuit.
APPEARS IN
RELATED QUESTIONS
State whether the following statement is true or false.
A wire with a green insulation is usually the live wire of an electric supply.
Draw a circuit diagram to show how a soft iron piece can be transformed into an electromagnet.
What is the usual capacity of an electric fuse used in the power circuit, of a small house?
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?
What is the usually colour of the insulation of :
(a) live wire
(b) neutral wire
(c) earth wire?
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.
Answer the following question:
What is overloading? When does it occur? How can overloading be avoided?
The most important safety method used for protecting home appliances from short-circuiting or overloading is ____________.
Why is it necessary to earth metallic appliances?
