Calculation: hBfh4n - 1

E__env =

k* q_₀

/ ( ε* r^²)

E__env =

k* q_₀

/ ( ε* r^²)

$E_{env}$ = $\frac{k\cdot q_0}{\varepsilon\cdot r^{2}}$

E__env =

k* q_₀

/ r^²/ ε

$E_{env}$ = $\frac{k\cdot q_0}{r^{2}\cdot \varepsilon}$