ELECTROSTATICS
TERMINOLOGY
Electric field: a region of space in which an electric charge
experiences a force.
Electric field at a point: the electrostatic force experienced per
unit positive charge placed at that point.
Coulombs law: the magnitude of the electrostatic force exerted by
one point charge on another point charge is directly proportional
to the product of the magnitude of the charges and inversely
proportional to the square distance between them.
Resultant: the vector sum of two or more vectors
Vector: quantities that have both magnitude and direction
E.g. displacement, velocity, acceleration
Scalor : quantities that only have magnitude
E.g. Mass, distance, speed
Resultant of 2 forces: a single force having the same effects as all
other forces acting together
formula sheet
Work out electrostatic force Excess electrons
K Q1 Q2 Q
F= r2
(N) n electrons= e
TERMINOLOGY
Electric field: a region of space in which an electric charge
experiences a force.
Electric field at a point: the electrostatic force experienced per
unit positive charge placed at that point.
Coulombs law: the magnitude of the electrostatic force exerted by
one point charge on another point charge is directly proportional
to the product of the magnitude of the charges and inversely
proportional to the square distance between them.
Resultant: the vector sum of two or more vectors
Vector: quantities that have both magnitude and direction
E.g. displacement, velocity, acceleration
Scalor : quantities that only have magnitude
E.g. Mass, distance, speed
Resultant of 2 forces: a single force having the same effects as all
other forces acting together
formula sheet
Work out electrostatic force Excess electrons
K Q1 Q2 Q
F= r2
(N) n electrons= e
