Coulombs Law

To solve the problem of calculating the force between two charges, we use Coulomb's Law. Coulomb's Law states:

F = k |q₁q₂| / r²

Where:

• F is the force between the charges (N).
• q₁ and q₂ are the magnitudes of the charges (C₁, C₂).
• r is the distance between the charges (m).
• k is Coulomb's constant, k = .

Given:

• q₁ = =
• q₂ = =
• r = 1 m

Substitute the values into Coulomb's Law:

F =

=

=

= (approx.)

Thus, the force between the two charges is .

Given:

Distance between charges,
Coulomb's constant,

Step 1: Formula for Electrostatic Force The electrostatic force between two point charges is given by Coulomb's law:

Step 2: Substitute the given values Substitute the given values into the formula:

Answer: The correct answer is option (b): 9 N.