How are the electromagnetic waves produced? What is the source of energy of these waves? Write mathematical expressions for electric and magnetic fields of an electromagnetic wave propagating along the z-axis. Write any two important properties of electromagnetic waves.
Answers
Explanation:
the waves which products by the help of electric and magmet
• If in a place , there is a charged perticle, electromagnetic field is produced around it and when this perticle is transferred from one place to another place , current is produced and this is called magnetic field.So we can say that by accelerated or oscillating charges , electromagnetic waves are produced.
•The mathematical expressions for electric and magnetic fields of an electromagnetic wave propagating along the z-axis can be described two equation
the in xz plane the electrical field
Ex= E° sin(Kz–ωt) where
z is the position of the perticle,
t is the time and
E° is the applitude of the electrical field
ω is the frequency
and
the in yz plane the magnetic field
By= B°sin(Kz–ωt) where
z is the position of the perticle,
t is the time and
B° is the applitude of the magnetic field
ω is the frequency
The diagram is given below.
• The applications important properties of electromagnetic waves:-
1. The do not need any kind of medium.
2. They travel in the speed of light (3×10^8 m/s)
3.electromagnetic waves didn't deflect by electric and magnetic field
