Superposition Principle For Electrostatic Force
Superposition Principle For Electrostatic Force:
Key Points:
 The net force acting on a charge due to multiple charges is the vector sum of the forces acting on the charge due to each individual charge.
 The force acting on a charge due to another charge is given by Coulomb’s law:
$$F_i = k * \frac{q_1 q_2}{r^2}$$
where:

k is the electrostatic constant (k ≈ 9 × 10^9 N m²/C²)

q_1 and q_2 are the magnitudes of the charges

r is the distance between the charges

The net force acting on a charge due to multiple charges is:
$$F_{net} = \Sigma F_i$$
where F_i is the force acting on the charge due to the ith charge
Examples:
 Two positive charges exert a repulsive force on each other.
 A positive charge and a negative charge exert an attractive force on each other.
 The net force acting on a charge due to multiple charges can be zero.
Applications:
 The superposition principle is used to calculate the electric field and electric potential at a point in space.
 The superposition principle is used to design and analyze electrical circuits.
 The superposition principle is used to study the behavior of charged particles in matter.