⚡ Electricity Units List with Analogy (Water Flow) 🌊

Unit Symbol What It Measures Analogy (Water Flow) Example Use
Volt V Voltage (Potential Difference) The pressure pushing the water US household outlets are typically 120V. A dry battery is 1.5V.
Ampere A Current (Flow rate of charge) The amount of water flowing per second A typical hair dryer draws about 10A.
Milliampere mA Current (1/1000th of an Ampere) A very small water flow rate Limiting current for an LED in electronics projects.
Ohm Ω Resistance (Opposition to flow) The narrowness/clog of a water pipe/hose Selecting a specific resistor.
Ohm-meter Ω⋅m Electrical Resistivity (Intrinsic material opposition) The inherent smoothness or roughness of the pipe material itself Copper has an extremely low electrical resistivity of 0.017 μΩ·m at 20°C.
Siemens S Conductance (Ease of flow) The width/ease of passage of a pipe The reciprocal of resistance.
Watt W Power (The rate at which energy is used) The speed/flow rate of water per unit time A standard LED light bulb consumes about 10W.
Megawatt MW Power (Large scale power)（1MW = 1,000,000W） Large scale water speed/flow rate The output capacity of a power plant (e.g., 600MW).
Joule J Energy (The ability to do work) The total amount of water flowed (capacity) A 1W bulb consumes 1J of energy every second.
Kilowatt-hour kWh Electrical Energy (Total energy used over time) The total amount of water flowed over an hour Used on electricity bills to measure consumption.
Coulomb C Electric Charge (Fundamental quantity) The total count of water particles passing a point The amount of electricity when 1A flows for 1 second.
Hertz Hz Frequency/Oscillation (The number of repetitions per second) The number of waves per second Power grid frequency (50Hz/60Hz).

　　　　自家発電のイラスト | かわいいフリー素材集 いらすとや　　　ダムのイラスト

　　　　　　　　　　　　　　　　　　　　　　　　　　　

Reference

We will provide the future of customers.(81)467-87-1552

Inquiry Please send E-mail