Answer:
The electric force between them will be changed by the factor, E = 9
Step-by-step explanation:
Given data,
The charge of the two identical charges, q = Q C
The distance between the charges, d = x
According to the Coulomb's law, the electric force between the two charges is given by,
F = k QQ/ x²
Where,
k is a constant equal to 9 x 10⁹ N m² C⁻²
If the amount of charges are tripled,
F' = k (3Q)(3Q)/x²
F' = 9 k Q Q / x²
F' = 9 F
Hence, the electric force between them will be changed by the factor, E = 9