What magnitude point charges creates a 10000 N/C electric field at a distance of 0.5 m? a. 877.2 nC

b. 287.7 nC

c. 277.8 nC

d. 872.7 nC

c. 277.8 nC

Explanation:

applying,

E = kq/r² Equation 1

Where E = electric field intensity, q = charge, r = distance, k = coulomb's constant.

make q the subject of the equation

q = Er²/k Equation 2

From the question,

Given: E = 10000 N/C, r = 0.5 m

Constant: k = 9×10⁹ Nm²/C²

Substitute these values into equation 2

q = (10000×0.5²)/(9×10⁹)

q = 277.8×10⁹

q = 277.8 nC

Hence the right option is c. 277.8 nC

i'm just gonna leave this comment here, so i can get a challange done-

explanation: