Question Detail

PHY 102 Last Minute Prep Objective Question

Question

Find the distance between point charges q1 = 26.0 μC and q2 = 47.0 μC, if a force of 5.70 N is acting between them.
Options
A 1.929 m
B 1.389 m
Correct Answer
C 0.5 m
D 2.680 m
Correct Answer

Option B is the correct answer.

Detailed Explanation

Using Coulomb's law: F = k q1 q2 / r² => r = √(k q1 q2 / F) = √((9×10^9 × 26×10^-6 × 47×10^-6) / 5.70) = 1.389m.

Hint

Apply Coulomb's law and solve for distance.

Question Info