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Ohm's Law is a fundamental principle in electrical engineering and physics that describes the relationship between voltage, current, and resistance in an electrical circuit. According to Ohm's Law, the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance of the conductor. This relationship can be expressed with the formula:
[ V = I \times R ]
where ( V ) is the voltage (in volts), ( I ) is the current (in amperes), and ( R ) is the resistance (in ohms).
This law is essential for understanding how electrical circuits operate, enabling engineers and scientists to design and analyze circuits effectively. The current increases with higher voltage and decreases with higher resistance, providing a clear framework for predicting circuit behavior under different conditions.
Other options provided refer to different physical relationships: energy, mass, and velocity pertain to mechanics; force, area, and pressure are part of fluid dynamics; while power, voltage, and current involve different concepts related to energy transfer and consumption rather than the basic relationship defined by Ohm's Law. Thus, the direct and specific connection of voltage, current, and resistance defines the essence of Ohm's Law