n
magnetic Waves
&
A
changing electric field produces changing magnetic
a
field and vice
·
versa
waves.
which
gives rise to a transverse wave known as
electromagnetic
The time electric field
varyingto magnetic field mutually
·
and are
also
perpendicular each other and perpendicular to the
direction
of propagation .
wave
m
propagation
of
History Electromagnetic
waves :
In the
year
1865 Maxwell predicted the
electromagnetic waves
·
,
&
theoretically
&
In Hertz
1887 ,
produced and detected
electromagnetic waves
·
experimentally
.
Concept of Displacement Current : -
While
applying
the Amperes circuital law to find magnetic field
at a
outside capacitor
point a connected to a time
varying ,
current
Maxwell noticed an
inconsistency in the Ampere's circuital law
, He
suggested the existence of an additional current
,
called
displacement current to remove this
inconsistency
Displacement current
I established due to the
9 - q
+
changing electric field
-
~
-
> in the capacitor .
-
M
ni
I conduction,
current) -11
↓
this is the conventional current
flowing through the circuit , casuing the
capacitor to charge .
·
in
-
According
to
ampere's law ,
at
for x :
JBx . =
Moi
for y :
J By de = 0 (as i = 0)
But maxwell found experimentallyByFo and gives the reason of this as
displacement current between the plates of capacitor .
magnetic Waves
&
A
changing electric field produces changing magnetic
a
field and vice
·
versa
waves.
which
gives rise to a transverse wave known as
electromagnetic
The time electric field
varyingto magnetic field mutually
·
and are
also
perpendicular each other and perpendicular to the
direction
of propagation .
wave
m
propagation
of
History Electromagnetic
waves :
In the
year
1865 Maxwell predicted the
electromagnetic waves
·
,
&
theoretically
&
In Hertz
1887 ,
produced and detected
electromagnetic waves
·
experimentally
.
Concept of Displacement Current : -
While
applying
the Amperes circuital law to find magnetic field
at a
outside capacitor
point a connected to a time
varying ,
current
Maxwell noticed an
inconsistency in the Ampere's circuital law
, He
suggested the existence of an additional current
,
called
displacement current to remove this
inconsistency
Displacement current
I established due to the
9 - q
+
changing electric field
-
~
-
> in the capacitor .
-
M
ni
I conduction,
current) -11
↓
this is the conventional current
flowing through the circuit , casuing the
capacitor to charge .
·
in
-
According
to
ampere's law ,
at
for x :
JBx . =
Moi
for y :
J By de = 0 (as i = 0)
But maxwell found experimentallyByFo and gives the reason of this as
displacement current between the plates of capacitor .
