Name
: Taha Rafiq
Class : B.Tech pass 5th
semester
Subject : EMF
Date : 25-02-2014
Electro Magnetic Field
An Electro Magnetic Field
is a physical field produced by electrically charged objects.
The field can be viewed
as the combination of an electric field and magnetic field.
The electric field is
produced by stationary charges, and magnetic field by moving charges(current);
these two are often described as the sources of the field.
In
other words
When a current is passing through a
conductor a field is generated around
the conductor that field is called Electro Magnetic Field.
Electro Magnetic Field is
directly proportional to Current
Uses/Applications:
1.
It is use
in electronic communication in which data or signals is transfers in the form
of electromagnetic waves. Eg. Mobile communication, satellite communication,
radio, FM, etc.
2.
It is also
use as switching in Relays and Contactors.
3.
Also use
in electric bells.
4.
Used in DC
Motors for generating magnetic flux.
