How are electric forces and distance related?

Question

Julia Aguilar · Accepted Answer

The square of the force's distance from its source determines the inverse relationship between electric forces and distance.

Algebraically, that looks like this. Wow, what does that mean?

Electric Force = #(k_e*|q_1*q_2|)/(r^2)#

Where #r# is the distance between the charges, #q_1# and #q_2# are the magnitudes of the two point charges, and #k_e = 8.99\times 10^{9} N\cdot m^2/C^2#, is a constant of proportionality called the Coulomb constant. The equation above is a simplified version of Coulomb's Law; more specifically it is the scalar form.

This property, called the Inverse-Square Law, can be expressed more simply as follows: for every double of distance, the force becomes four times weaker. Many concepts in physics follow this law. To learn more about it, click the link below.

Wikipedia, the free encyclopedia, wiki/Inverse-square_law

Leo Abeyta · Answer

undefined Electric forces and distance are inversely related according to Coulomb's Law, which states that the force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between their centers.