ELECTROSTATIC
First of all,I clear you what is static electricity?
Whenever there is a frictional force between two surface of the body that frictional force is converted into ''static electricity'' or ''Electrostatics".
Why electrostatic or static electricity is produced?
when two surface of body contact and slides on each other then "charges" of this two body transfer to one another.
Example-Glass rod and silk cloth experiments, Bending water,Chair and towel experiment etc. proves charges transfering.
what is Charges?
In an atom there are three particles Proton,Electron,and Neutron.symbol is "q".
Proton is a positively charged sub-atomic particle.
Electron is a negatively charged sub-atomic particle.
Neutron is in neutral.No charges are present in this sub-atomic particle.
What is an electric field?
Force excerted by charge(+ve or -ve) on a space is called as electric field.It will not visible but it can represented by graphical lines in theoretically.
f
The lines which represent electric field are called "Electric lines of force".
What is an electric field intensity(E)?
A force execerted by a single positive charge at a point is called ''electric field intensity''.
E=F\Q
force by charge
E=electric field intensity.
F=force in newtons acting on couloumbs.
Q=charge in couloumbs.
What is an Electric flux?
The total lines that surrounds a particular charge is said to be an "electric flux"Electric flux measures the "electric field".Its unit is couloumb(c). Symbol for elctric flux(ϕ).
what is an Electric Flux Density(D)?
Electric flux density is equal to Electric flux per unit
area at an electric field.
D= ϕ /A coloumb\m^2
What is an electic potential?
This is a type of work which moves a one coloumb
of charge from infinity distance to the electric field,
that work is called ''Electric potential''.
ϕ
