�ݺ�ߣ

The flow of charge is known as electric
current.

 Materials that allow electric current to flow
through them are known as good conductors of
electricity. For example, copper, iron and
graphite.

 Materials that do not allow electric current to flow
through them are known as bad conductors or
insulators of electricity. For example, plastic,
wood and rubber.

Liquids like lemon juice, water and vinegar
are good conductor of electricity. They
conduct electricity.

Distilled water that is free from impurities
and salt, it is a poor conductor of electricity.
But, tap water, mineral water and water
having impurities in it, are good conductors
of water.

 A cell contains different chemicals. When these
chemicals react, their chemical energy is
converted into electrical energy. This electrical
energy is used for running different objects such
as torches, toys, calculators and watches.

 The process of decomposition of a substance by
passing electric current through it in the molten
state or its aqueous solution is known as
electrolysis.

 Electrolytes:
 The substance which
conducts electricity in
the molten or in the
aqueous state is
known as electrolyte.
For example, all salts,
acids and bases.
 Non- electrolytes:
 Substances that do
not conduct electricity
in the molten or in the
aqueous state are
known as non-
electrolytes. For
example, sugar and
glucose.

 Anode:
 Positively charged
electrode is known as
anode.
 Cathode:
 Negatively charged
electrode is known as
cathode.

 Electroplating is
defined as the
process of coating a
layer of any desired
metal on another
conducting material
by means of electric
current.

Chemical effects of electric current

Used for coating the surface of objects
such as car parts, kitchen gas burners,
taps and many more.
It is used in making silver and gold plated
ornaments.
It is used for making cans for storing food.
These cans consists of a layer or tin
coated on iron.
Coating of zinc on iron to protect it from
rusting.

�ݺ�ߣ

Chemical effects of electric current

More Related Content

Chemical effects of electric current