$E=k\frac{Q}{R^2}$ is the equation for the electric field surrounding point charges.

a$)$ What is the relationship between E and the distance away from the charge, R$?$ Explain with an example.

b$)$ Sketch electric field lines around each charge and pass one through the three points, then draw a vector showing the resulting field at each point $($ie$.E_a,E_b,$ and $E_c).$

b

a

c

$($t$)$