Question

The most important safety method used for protecting home
appliances from short circuiting or overloading is
(a) earthing
(b) use of fuse
(c) use of stabilizers
(d) use of electric meter

NCERT Class X
Science - Exemplar Problems

Chapter_Magnetic Effects of
Electric Current

Answer 1

answer is:  (a).  Earthing..  this is for short circuit or overload protection.

stabilizers are used against  voltage  fluctuations.

Answer 2

The most important safety method used for protecting home appliances from short-circuiting or overloading is the use of fuse.

Option (b)

Explanation:

• An electrical circuit fuse is a small wire which is made up of material with a low melting point. In fuses, there is a series connection of all switches and lights with the fuse.
• It is safer than all connections in series will automatically turn off when the fuse melts when it exceeds the specific value and breaks the electric circuit.

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