GKFix MCQ Question

What is the value of the constant 1/(4πε₀) used in Example 2.1?

• A. 8.85 × 10⁻¹² C²/Nm²
• B. 6.67 × 10⁻¹¹ Nm²/kg²
• C. 9 × 10⁹ Nm²/C²
• D. 3 × 10⁸ m/s