Question Detail

PHY 102 Coulomb's law and Electric Fields Objective Question

Question

Which of the following expressions correctly represents Coulomb's Law for the magnitude of the electric force (Fe) between two point charges q1 and q2 separated by a distance r in vacuum?
Options
A F<sub>e</sub> = k₀ * (q₁ + q₂) / r²
B F<sub>e</sub> = k₀ * q₁ * q₂ * r²
C F<sub>e</sub> = k₀ * |q₁ * q₂| / r
D F<sub>e</sub> = k₀ * q₁ * q₂ / r²
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

On page 1, Eq. (24.1) for Coulomb's Law in vacuum is given as Fe = k₀ * q₁ * q₂ / r². While some authors use absolute values to denote magnitude explicitly, this is the most direct representation provided in the text.

Hint

Refer to the initial mathematical formulation of Coulomb's Law on page 1.

Question Info