Question

Nancy wants to calculate electromagnetic force acting between two point charges, so which law she would like to use *
A) Newton’s law of gravitation
B) Coulomb’s inverse square law
C) Maxwell's law
D) Gauss' law​

Answer 1

Answer:

B. Coulomb's inverse square law

Explanation:

Coulombs law is used to calculate electrostatic force between two point charges

and considering a magnetic field is created only when either the charge or the person is moving,

therefore for two static point charges all the electromagnetic force is in electrostatic state. Hence B

Answer 2

Answer

B

Explanation

F ∝ q₁q₂

F ∝ 1

r2

F ∝ q₁q₂

r2

F = Kq₁q₂

r2

F = 1 . q₁q₂

4π€ r2