Question Detail

PHY 102 Electrostatics: Electric Charge and Coulomb's Law Objective Question

Question

What is the value of the proportionality constant 'k' in Coulomb's Law?
Options
A 1.602 x 10^-19 N·m²/C²
B 8.85 x 10^-12 N·m²/C²
C 8.99 x 10^9 N·m²/C²
Correct Answer
D 6.67 x 10^-11 N·m²/C²
Correct Answer

Option C is the correct answer.

Detailed Explanation

The proportionality constant k (or 1/4πε₀) is approximately 8.99 x 10^9 N·m²/C² in SI units.

Hint

It is a very large number used in the force equation.

Question Info