# Understanding Ohm's Law

When working with electrical current flow, it is important to understand Ohm's law. There is a direction connection between the two. This law allows people to define the basic fundamental elements of electrical quantities: this is resistance, current, and voltage. The base of Ohm's Law dictates that a conductor's current, between two points, is tied to the potential difference between the two points. In essence, the current that flows within a circuit is directly proportional to the voltage, but at the same time it is inversely proportional to the circuits resistance. This means that when voltage is raised, and the resistance does not change, the current will increase. If instead the resistance is increased, then the flow of the current will be lowered, but this will only happen if the voltage isn't changed. The equation works in a way that allows for each of the three integers to be found as long as two are already known. With this equation one is able to analyze circuits: this includes resistive circuits, reactive circuits, and small signal circuits.

In order for shielding gaskets to work properly, Ohm's Law is needed. The material of the gasket is supposed to cover the seams and the gaps of an electronic enclosure. The only way that this material can work properly is if the current flow inside is known. This allows for the proper shielding gasket to be acquired.

Georg Ohm based his work off of Henry Cavendish, who was working with electrical currents in the late 1700s. Ohm's work didn't begin until the 1820s, and the equation was finally published in 1827. His work was also based off Joseph Fouriers work. The work that was done by Ohm is one of the more important descriptions of quantitative physics of electricity. It is odd how today this equation is taken for granted, meaning that we understand current flow, but when this was published in the 1800s people were not aware of this.

This law is useful for many different industries, but it is especially useful for electrical engineering. The reason it is needed for this field is to allow people to look at circuits on a macroscopic level.

Maxwell's equation was built off Ohm's law, but the two can work together. The developments that have been made with modern electromagnetics do not contradict what Ohm's law says. Both equations have practical application in today.