Question

Электрическое поле создано точечный положительный заряд q1=6 НКл. Положительный заряд q2 переносится из точки 1 этого поля в точку 2. Определить изменения потенциальной энергии ΔW приходящееся на единицу переносимого заряда, если r1=20 см и r2=50 см?

Answer 1

W₁=q₁q₂/4πε₀r₁    W₂=q₁q₂/4πε₀r²
ΔW/q₂=q₁/4πε₀(1/r₂-1/r₁)
ΔW=-162 (Дж/Кл)

Answer 2

Calculating the Change in Potential Energy

To calculate the change in potential energy, we can use the formula:

ΔW = k * q1 * q2 * (1/r1 - 1/r2)

Where: - ΔW is the change in potential energy - k is the Coulomb's constant (k ≈ 8.99 x 10^9 Nm^2/C^2) - q1 and q2 are the magnitudes of the two point charges - r1 and r2 are the initial and final distances from the point charge q1 to the point charge q2

Given: - q1 = 6 NC - r1 = 20 cm = 0.20 m - r2 = 50 cm = 0.50 m

Let's calculate the change in potential energy using the provided values.

Calculation

Using the formula:

ΔW = (8.99 x 10^9 Nm^2/C^2) * 6 NC * q2 * (1/0.20m - 1/0.50m)

Result

The change in potential energy ΔW can be calculated using the given formula and the provided values for q1, r1, and r2.