Ohm’s Law Calculator

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What is Ohm’s Law?

Ohm’s Law is a fundamental principle in the field of electrical engineering and electronics, defining the relationship between voltage, current, and resistance in an electrical circuit. It states that the current through a conductor between two points is directly proportional to the voltage across the two points. This relationship is expressed with the simple equation I = V/R, where I represents the current in amperes (A), V represents the voltage in volts (V), and R represents the resistance in ohms (Ω).

Understanding Ohm’s Law is crucial for engineers and technicians as it applies to almost all basic circuits and electronic components. It helps in designing circuits, analyzing electrical problems, and understanding how changes in a circuit affect the current flow and voltage. The law is named after Georg Simon Ohm, a German physicist who first formulated this relationship in 1827.

Ohm’s Law is not just a theoretical concept but a practical tool used in various applications. From simple tasks like determining the correct resistor to use in a circuit to complex electrical network analyses in power systems, Ohm’s Law serves as a cornerstone of electrical engineering principles.