Asource charge of 3 µc generates an electric field of 2.86 × 105 n/c at the location of a test charge. using k = 8.99 × 109n. m^2/c^2, what is the distance, to the

Variables:

Source charge, Q = 3 micro C = 3 * 10^ - 6 C

E = electric field = 2.86 * 10 ^5 N/C

K = 8.99 * 10^9 N * m^2 / C

d = distance = ?

Formula:

E = K * Q / (d^2) => d^2 = K * Q / E

=> d^2 = 8.99 * 10^9 N * m^2 / C * 3 * 10^ -6 C / (2.86 * 10^ 5 N/C)

d^2 = 9.43 * 10 ^ -2  m^2

=> d = 3.07 * 10^-1 m

0.307 m

Note: it is a long distance due to the Electric field is very low

Iwould say a is accurate