Using Coulomb's law of electrostatics. Solve the
following problems.
1.Compute the force of attraction between a +1.60 x 10^-19 C charge and a -2.09 x 10^-18C
charge if they are 4.10 x 10^-10 m apart.
2.Calculate the repulsive force between a +1.15 x 10^-9 charge and a +1.49 x 10^-8 C charge if a distance of 2.01 x 10-^20 m separates them.
following problems.
1.Compute the force of attraction between a +1.60 x 10^-19 C charge and a -2.09 x 10^-18C
charge if they are 4.10 x 10^-10 m apart.
2.Calculate the repulsive force between a +1.15 x 10^-9 charge and a +1.49 x 10^-8 C charge if a distance of 2.01 x 10-^20 m separates them.
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Answer:
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