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Byju's Answer
Standard XII
Physics
Charge Behaviour
why k in coul...
Question
why k in coulombs law do not have infinite value?
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Solution
The
constant
k
in
coulomb
'
s
law
is
called
as
dielectric
constant
.
It
is
given
by
the
relation
,
k
=
1
4
πε
o
where
ε
o
=
Permittivity
of
free
space
or
vacuum
=
1
4
×
π
×
8
.
854
×
10
-
12
=
9
×
10
9
N
.
m
2
/
C
2
As
permittivity
of
free
space
never
become
zero
,
the
value
of
k
never
become
infinite
.
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