We use electric energy to do various jobs in our daily lives conveniently. On all
these occasions we convert electric energy into another form of energy to suit our
requirements. This energy conversion takes place in various electric appliances.
The instruments used for these energy conversions are known as electric appliances.
The main forms of energy conversions that take place in some electric appliances
used in daily life are given in the Figure
In some electric appliances, after the first energy conversion, another energy
conversion also takes place and we use that energy. As an example, in a filament
bulb, electric energy is initially converted into heat which increases the temperature
of the filament resulting in the emission of light. In fluorescent lights electric energy
is first converted into ultraviolet radiation which is next converted into visible light.
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