In the same circuit, the current conductor with the conductor is proportional to the voltage at both ends, with the conductor resistance is inversely proportional to the resistance, which is Ohm's law.Coulomb's law is a basic law of electromagnetic theory.Vacuum between the two stationary point charge of the force with the power carried by the product of the two charges is proportional to the square of the distance, and they are inversely proportional to the direction of force along the connection of these two point charges, the same name charge repulsion, synonyms charge attracts like.

Ohm's Law deals with the relationship between voltage and current in an ideal conductor. This relationship states that:

The potential difference (voltage) across an ideal conductor is proportional to the current through it.

The constant of proportionality is called the "resistance", R.

Ohm's Law is given by:

V = I R

Coulomb's law predicts that the force exerted by one point charge on another is proportional to the product of the two charges.By changing one charge while keeping other things constant and seeing if the force is proportional to it.

Try this ohms law calculator app through which you can easily came to know about the calculations of voltage,current and resistance.