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Electricity math involves understanding the relationships between voltage (V), current (I), and resistance (R) using Ohm's Law, which states that V = I
R. Voltage, measured in volts (V), is the electrical potential difference that drives current through a circuit. Current, measured in amperes (A), is the flow of electric charge per unit time, and it's directly proportional to voltage and inversely proportional to resistance (I = V / R). Resistance, measured in ohms (Ω), opposes the flow of current and depends on the material's properties, length, and cross-sectional area. Kirchhoff's Laws govern the conservation of charge and energy in electrical circuits, allowing us to analyze complex networks by setting up systems of equations to determine unknown currents and voltages. These principles are fundamental in designing, analyzing, and troubleshooting electrical systems, from simple household circuits to sophisticated power grids.