Question

a point charge 15 microcoulomb is located in the xy plane at the point of position vector are not equal to two ICAP + 3 J cap what is the electric field at the point of position vector are equal to 8 ICAP - 5 j^

Answer 1

charge is at (2,3)
for electric field at (8,-5)
r = √(6×6+8×8) = 10
E = kq/r^2
= 9×10^9×15×10^-6÷100
= 135×10^11
=1.35×10^13