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Electric - Hydraulic Analogy: Charge, Voltage, and Current (introduction)

Hydraulic systems are like electric circuits: volume = charge, flow rate = current, and pressure = voltage. The hydraulic analogy is useful for visualizing what happens in electric circuits, especially the behavior of wires, batteries, resistors, capacitors, inductors, and diodes. There are hydraulic models for each of these circuit components. Read at website: http://ataridogdaze.com/science/hydra... In a hydraulic circuit, a pump brings up water from a reservoir at zero pressure and pressurizes it; this requires energy. The water flows under pressure. When the water under pressure is released, the pressure drops back to zero and the stored energy is released. In an electric circuit, a battery brings up charge from ground at zero voltage and raises the charge to a higher voltage; this requires energy. The charge flows under the increased voltage. When the charge is released, the voltage drops back to zero and the stored energy is released. This is the first in a set of several videos on electric circuits and the hydraulic analogy. You can watch the videos in any order, but the following sequence is suggested for the best continuity: 1. Introduction: Charge, Voltage, and Current (this video),    • Electric - Hydraulic Analogy: Charge,...   An introduction to the video series; what is the hydraulic analogy? 2. Force, Energy, and Power,    • Force, Energy, and Power: Electric - ...   Energy = Force x Distance = Pressure x Volume = Voltage x Charge; Power = Energy/Time 3. Resistor Behavior,    • Resistors: Electric - Hydraulic Analo...   A resistor is like a narrow point in a water pipe; Ohm's Law; Power = Voltage x Current 4. Capacitor Behavior,    • Capacitors: Electric - Hydraulic Anal...   A hydraulic capacitor is a cylinder divided by a flexible rubber sheet; Charge = Capacitance x Voltage, i=C(dv/dt); conservation of charge 5. Inductor Behavior,    • Inductors: Electric - Hydraulic Analo...   An hydraulic inductor is a water wheel connected to a heavy flywheel, and magnetic flux is like the momentum of the flywheel; Flux = Inductance x Current, V=L(di/dt) 6. Inductor-Capacitor (L-C) Oscillator,    • Inductor-Capacitor LC Oscillator: Hyd...   A capacitor and inductor connected in a circuit oscillates with a fixed period; hydraulic model visually demonstrates stored energy alternating between capacitor and inductor Companion website (read instead of watch): http://ataridogdaze.com/science/hydra... Other hydraulic analogy websites: Water circuit analogy to electric circuit http://hyperphysics.phy-astr.gsu.edu/... Hydraulic analogy, Wikipedia https://en.wikipedia.org/wiki/Hydraul... Understanding Electricity with Hydraulics: https://www.allaboutcircuits.com/tech... Khan Academy math analysis of electric circuits, including LC oscillator: https://www.khanacademy.org/science/e... Future hydraulic analogy video topics: How good is the hydraulic analogy? Kirchoff's Laws Comparison of capacitor and inductor behavior Dielectric materials in capacitors Ferromagnetic materials in inductors Exponential decay in RC and RL circuits Diode behavior Alternating current Voltage transformer Power transmission