Electrostatics

Question 1

Coulomb’s law

Answer 1

2 point charges in free space or air exert forces on each other. The force is directly proportional to the product of the charges and inversely proportional to the square of the distance between the charges.

Question 2

Magnitude of the electric field at a point

Answer 2

The force per unit positive charge E= F/q where E and F are vectors.