“Importance of electrical energy or why we need
to electrical energy”
Energy
may be needed as heat, as light, as motive power etc. The present day
advancement in science and technology has made it possible to convert
electrical energy into any desired form. This has given electrical energy a
place of pride in the modern world. The survival of industrial undertakings and
our social structures depends primarily upon low cost and uninterrupted supply
of electrical energy. In fact, the advancement of a country is measured in terms
of per capita consumption of electrical energy.
Electrical energy is superior to all other forms
of energy due to the following reasons :
1) Convenient form: Electrical
energy is a very convenient form of energy. It can be easily converted into
other forms of energy. For example, if we want to convert electrical energy
into heat, the only thing to be done is to pass electrical current through a
wire of high resistance e.g., a heater. Similarly, electrical energy can be
converted into light (e.g. electric bulb), mechanical energy (e.g. electric
motors) etc.
2) Easy control:
The electrically operated machines have simple and convenient starting, control
and operation. For instance, an electric motor can be started or stopped by
turning on or off a switch. Similarly, with simple arrangements, the speed of
electric motors can be easily varied over the desired range.
3) Greater flexibility:
One important reason for preferring electrical energy is the flexibility that
it offers. It can be easily transported from one place to another with the help
of conductors.
4) Cheapness:
Electrical energy is much cheaper than other forms of energy. Thus it is
overall economical to use this form of energy for domestic, commercial and
industrial purposes.
5) Cleanliness:
Electrical energy is not associated with smoke, fumes or poisonous gases. Therefore,
its use ensures cleanliness and healthy conditions.
6) High transmission efficiency:
The consumers of electrical energy are generally situated quite away from the
centres of its production. The electrical energy can be transmitted
conveniently and efficiently from the centres of generation to the consumers
with the help of overhead conductors known as transmission lines.
This True
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