Which of the following is the correct force between two negative charges?
Question
Which of the following is the correct force between two negative charges?
Solution
The force between two negative charges is repulsive. This is due to Coulomb's Law, which states that like charges repel each other. The magnitude of this force can be calculated using the formula:
F = k * |q1*q2| / r^2
where:
- F is the force between the charges,
- k is Coulomb's constant (approximately 8.99 * 10^9 N m^2/C^2),
- q1 and q2 are the values of the two charges (in Coulombs), and
- r is the distance between the charges (in meters).
The direction of the force on each charge is along the line joining the charges and is away from the other charge since they are both negative.
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