====== Electricity ====== Voltage, current, and resistance are related to electrical charge: Voltage: The difference in charge between two points. Voltage is measured in volts (V). Current: The rate at which charge flows. Current is measured in amperes (A). Resistance: A material's tendency to resist the flow of charge. Resistance is measured in ohms (Ω). Voltage: The electrical potential difference between two points. Current: The flow of electrons in a circuit . Resistance: Something that resists the flow of electrons. The relationship between voltage, current, and resistance is Ohm's Law , which is represented by the formula V = R × I.