Electric field and Electric Potential
Electric field is a region around a charge in which charge applies the electric force on other charges. The intensity of electric field at a point due to a charged body is a vector quantity so it will be having both magnitude and direction.
The magnitude of intensity of electric field due to a point charge is the electric force acting on a unit positive test charge placed at that point.
E=F/q. where q is a positive test charge which is kept at that point where the electric field is to be measured.Its SI unit is N/C i.e. newton/coulomb
The direction of intensity of electric field is away from the charge when source charge is positive and towards the charge when the source charge is negative.
Electric potential at a point in the electric field of a source charge is the work done in bringing a unit positive test charge from infinity to that point.It is scalar quantity. It is positive for positive source charge and negative for negative source charge.
V=W/q Its SI unit is J/C i.e. joule/coulomb
Electric field is a region around a charge in which charge applies the electric force on other charges. The intensity of electric field at a point due to a charged body is a vector quantity so it will be having both magnitude and direction.
The magnitude of intensity of electric field due to a point charge is the electric force acting on a unit positive test charge placed at that point.
E=F/q. where q is a positive test charge which is kept at that point where the electric field is to be measured.Its SI unit is N/C i.e. newton/coulomb
The direction of intensity of electric field is away from the charge when source charge is positive and towards the charge when the source charge is negative.
Electric potential at a point in the electric field of a source charge is the work done in bringing a unit positive test charge from infinity to that point.It is scalar quantity. It is positive for positive source charge and negative for negative source charge.
V=W/q Its SI unit is J/C i.e. joule/coulomb
