Which is the correct value and unit of the permittivity of free space, ε₀?

1. A Option A: 8.85 × 10⁻¹² C² N⁻¹ m⁻²
2. B Option B: 9.0 × 10⁹ N m² C⁻²
3. C Option C: 1.6 × 10⁻¹⁹ C
4. D Option D: 8.85 × 10⁻¹² N m² C⁻²

Answer checked 11 October 2026 · How we write and check questions