ELECTROSTATIC POTENTIAL AND CAPACITANCE Notes

All of us have the experience of seeing a spark or hearing a crackle when we take off our synthetic clothes or sweater, particularly in dry weather. The reason for these experiences is discharge of electric charges through our body.

Static means anything that does not move or change with time.

The branch of physics, which deals with study of charges at rest (static charge), the force between the static charges fields and potentials due to these charges is called as Electrostatics or Static Electricity.

Frictional Electricity is the electricity produced by rubbing two suitable bodies and transfer of electrons from one body to other.

Historically, this phenonmenon was discovered by a greek ‘ Thales of Miletus’ around 600BC. The name electricity was taken from the Greek word ‘Elecktron’.

1) What do you mean by the conservative nature of electric field?
The conservative nature of electric field means that the work done to move a
charge from one point to another point in electric field is independent of path,
but it depends only on the initial and final positions of the charge.

2) Define Electrostatic Potential.
Electrostatic potential at a point in field is defined as the work done to move a
unit positive charge, without any acceleration from infinity to that point at
consideration.
If is the work done to move a charge from infinity to a point, then the
electric potential at that point is

SI Unit is J C-1
= volt (V)
3) What is the SI unit of Electric Potential?
SI Unit of Electric Potential is J C-1
= volt (V)

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ELECTROSTATIC POTENTIAL AND CAPACITANCE Notes

Electrostatics or Static Electricity or Frictional Electricity

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