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So, an integer variable is a scalar value. This means that you can have any integer inside of it that you want. Scalar generally means one-dimensional, so it can be any number on that dimension, like the number line.
where is Coulomb's constant (), and are the signed magnitudes of the charges, the scalar is the distance between the charges, the vector is the vectorial distance between the charges, and (a unit vector pointing from to). The vector form of the equation calculates the force applied on by.