QUANTISATION
OF ELETRIC CHARGE
This is the
property due to which all free charges are integral multiple of basic unit of
charge represented by e.
Representation| -e is a electron and +e
is proton.
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COULOMB’S LAW
This law
states that the force of interaction between two point charges is directly
proportional to the product of charges and inversely proportional to the square
of distance between them.
It obeys
Newton’s Third Law of Motion
Where k is the electrostatic force constant
The value of electrostatic force
constant depends on the nature of medium separating the charges and the system
of units.
Where ɛ0 is
called the absolute electrical permittivity of free space
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