Electric Field of a Single Point-Charge: an Atomic Nucleus Has

Multiple Choice

Electric field of a single point-charge: An atomic nucleus has a charge of +40e. What is the magnitude of the electric field at a distance of 1.0 m from the center of the nucleus? (k = 1/4πε₀ = 8.99 × 10⁹ N ∙ m²/C², e = 1.60 × 10^-19C)

A) 5.4 × 10^-8 N/C
B) 5.6 × 10^-8 N/C
C) 5.8 × 10^-8 N/C
D) 6.0 × 10^-8 N/C