Find the gravitational force between two electrons placed at a distance of 1 meter from line joining there centers
Answers
Answer:
Through the work of scientists in the late 18th century, the main features of the electrostatic force—the existence of two types of charge, the observation that like charges repel, unlike charges attract, and the decrease of force with distance—were eventually refined, and expressed as a mathematical formula. The mathematical formula for the electrostatic force is called Coulomb’s law after the French physicist Charles Coulomb (1736–1806), who performed experiments and first proposed a formula to calculate it.
COULOMB’S LAW
F
=
k
∣
q
1
q
2
∣
r
2
Coulomb’s law calculates the magnitude of the force F between two point charges, q1 and q2, separated by a distance r. In SI units, the constant k is equal to
k
=
8.988
×
10
9
N
⋅
m
2
C
2
≈
8.99
×
10
9
N
⋅
m
2
C
2
The electrostatic force is a vector quantity and is expressed in units of newtons. The force is understood to be along the line joining the two charges. (See Figure 2).