Explanation:
The electric field is given by :
[tex]E=k\dfrac{Q}{r^2}[/tex]
Where
k is electrostatic constant, [tex]k=\dfrac{1}{4\pi \epsilon_o}=9\times 10^9\ Nm^2/C^2[/tex]
Q is the magnitude of charge
r is the distance from the charge
The gravitational field equation is given by :
[tex]g=\dfrac{GM}{r^2}[/tex]
G is universal gravitational constant
M is the mass
r is the distance