GKFix MCQ Question

What is the approximate value of the elementary charge (e) used in the calculations?

• A. 9.0 × 10⁹ C
• B. 1.6 × 10⁻¹⁹ C
• C. 8.85 × 10⁻¹² C
• D. 6.63 × 10⁻³⁴ C