Question

Consider two point particles that have charge +e, are at rest, and are separated by 3.8 x 10-15 m. 1)How much work was required to bring them together from a very large separation distance

Answer 1

Answer:

6.06 × 10⁻¹⁴J

Explanation:

Work done in bring the together is defined by the formula

W= qV  where V is the potential difference between them and q, charge and V = k q/ r

W = Kq₁q₂ / r and q₁ = q₂ = 1.6 × 10⁻¹⁹C

K electric constant = 8.99 × 10⁹ N m²C⁻²

W = 8.99 × 10⁹ N m²C⁻² × (1.6 × 10⁻¹⁹C) ² / 3.8 x 10⁻¹⁵ m

W = 6.06 × 10⁻¹⁴J