Exam-style question
Try this first
What is the mathematical form of Coulomb's law?.
- A.F = G(m1 * m2) / r^2
- B.F = k(q1 * q2) / r^2
- C.F = m*a
- D.F = qE
Model answer
What a good answer should say
- F = k(q1 * q2) / r^2
Explanation
Why this works
Coulomb's law is mathematically expressed as F = k(q1 * q2) / r^2, where F is the force between two charges, k is Coulomb's constant, q1 and q2 are the magnitudes of the charges, and r is the distance between the centers of the two charges. This formula highlights the inverse-square relationship between force and distance, which is a fundamental aspect of electric interactions.
Common mistake
No common mistake is linked to this question yet.