A point charge pr

Given:
Electric field due to a point charge: E = 5 N C^–1
Distance between the point charge and the point at which electric field is produced : r = 40 cm = 0.4 m
Formula used:

Electric field is given as:
E=kq r²
Here , k is a constant and k= = 9× 10⁹ Nm²C^-2 . q is the point charge .
Substituting we get,


Hence, magnitude of the charge is 8.89× 10^-11 C.