Ohm’s Law in AI and Automation: An Essential Concept for Modern Engineers
When it comes to the foundational principles of the world in which we live – including the electrical engineering processes that have been instrumental in building this world – few concepts are as important as Ohm’s Law.
Far from a principle that emerging engineers might only need to engage with in textbooks, Ohm’s Law plays as profound a part as ever in today’s ever-more digitalised and complex design and manufacturing systems.
Ohm’s Law is unassuming but powerful, driving the innovation and development of many of the most relevant technologies of the 2020s, including automation and artificial intelligence (AI).
In this article, then, we will set out the fundamentals of Ohm’s Law, and how it applies to various pertinent fields of endeavour in current design, technology, and engineering.
A Quick Introduction to Ohm’s Law
In the words of TechTarget, Ohm’s Law can be defined as “the mathematical relationship among electric current, resistance and voltage.”
The principle is named after, and was first formulated by, the German physicist Georg Simon Ohm (1789-1854). The mathematician used equipment of his own creation to discover a direct proportionality between the potential difference (voltage) applied across a conductor and the electrical current arising from this.
In a paper published in 1827, Ohm set out an experiment that had involved him measuring voltage across and current through simple electrical circuits containing a range of wire lengths.
In Summary, Then, What Is Ohm’s Law?
Ohm’s Law outlines the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit. This principle plays a fundamental role in the design and analysis of electrical and electronic systems, enabling engineers and technicians to predict how current will flow through a circuit.
The mathematical equation for Ohm’s Law is typically expressed as I = V / R. In this context, I is the current in amperes, V is the voltage in volts, and R is the resistance in ohms.
It may be a simple equation, but it nonetheless shows that in the event of voltage being increased across a conductor, the current will also heighten, provided that the resistance stays constant. If, on the other hand, the conductor’s resistance is increased, the current will go down for a given voltage.
The Ways in Which Ohm’s Law Is Applied to AI And Automation
While Ohm’s Law has long been used for an exceedingly broad range of applications – from electrical circuit design to battery life estimates – many modern engineers may be especially interested in its relevance to the following disciplines:
- Automation can be more easily developed with the help of Ohm’s Law, due to how it enables engineers to accurately design and control electrical circuits within automated systems. This is key for ensuring precise control and dependable operation across all manner of automated processes, such as robots and industrial machinery.
- Artificial intelligence systems can be made more energy-efficient due to how the physical properties of electrical circuits – governed by Ohm’s Law – can be used to perform computations through neural networks. It is primarily the concept of analog computing through which Ohm’s Law is applied to AI.
You might have explored some of these possibilities for Ohm’s Law through your own work as a designer or engineer, perhaps drawing upon widely available tools such as Ohm’s Law calculators or an AWG conversion calculator for wire sizing.
Regardless, there can be little doubt about the cornerstone role that Ohm’s Law occupies across all manner of today’s most complicated, relevant, and sophisticated electrical engineering processes.
For many different industries and technologies, Ohm’s Law remains vital. This means that students, hobbyists, and professionals alike should prioritise ensuring they have a solid grasp of such an essential concept.
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