Which of the following best describes the relationship between current, voltage, and resistance?

Study for the Leaving Certificate Engineering Exam. Enhance your knowledge with quizzes and questions featuring hints and detailed explanations. Prepare effectively for success in your exam!

The relationship between current, voltage, and resistance is best described by Ohm's Law. This fundamental principle in electrical engineering states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. Mathematically, it is represented as I = V/R.

Understanding Ohm's Law is crucial as it allows engineers and technicians to calculate the behavior of electrical circuits, ensuring that they can design and analyze these systems effectively. This relationship helps in determining how much current will flow at a given voltage for a specific resistance, which is essential for safe and functional electrical system design.

In contrast, Kirchhoff's Law deals with the conservation of charge and energy in electrical circuits, while Faraday's Law pertains to electromagnetic induction, and Newton's Law relates to motion and classical mechanics. Although these principles are important in their respective fields, they do not specifically describe the linear relationship between current, voltage, and resistance found in Ohm's Law.

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