Question

four point charges 10 raise to minus 7 coulomb minus 10 raise to minus 7 coulomb minus 2 into 10 raise to minus 7 coulomb 2 into 10 raise to minus 7 coulomb are placed respectively at the corners ABCD of a 0.05 metresquare find the magnitude of the resultant force on charge at D​

Answer 1

from the figure.

i have considered q=10^-7

as both are like charges so they repel each other.

the angle between F1And F2is 90°

hope it is helpful.