A charge of 6 point 4 times 10 to the negative 7 power cap c experiences an electric force of 1 point 8 times 10 inverse cap n What is the electric field strength?

Use the relationship E = F/q. With F = 1.8 × 10⁻¹ N and q = 6.4 × 10⁻⁷ C, E = (1.8 × 10⁻¹)/(6.4 × 10⁻⁷) ≈ 2.8 × 10⁵ N/C. Therefore, the electric field strength is choice C, 2.8 × 10⁵ N/C.

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