Hydraulic analogy of electricity

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Presentation transcript:

Hydraulic analogy of electricity Unit 2.Lesson 1

The hydraulic analogy Purpose To use a water circuit where drops transport energy as a explanation of how an electrical circuit transports energy by moving electrons. Cast of characters A drop of water as the electron The water pressure (pressió de l’aigua o altura) as the voltage or potential difference. The water flow (cabal d’aigua) as the intensity of the electricity current The pipe obstruction (resistència de les canonades) as the resistance of electricity components in the circuit

Difference of potential Voltage equivalence Small Big Waterfall Water pressure (pressió) High Low Voltage or Difference of potential Torch and batteries

Introduction to Circuit Analysis - Water Analogy Voltage equivalence Introduction to Circuit Analysis - Water Analogy

Intensity equivalence Water flow (cabal) Little Big Intensity

Resistance equivalence Small Big Water obstruction High Low Electric resistance

Ohm’s law

Ohm’s law Voltage (V)= Intensity(A) x Resistance (Ω) Hydraulic analogy Electric magnitude symbol unit Pressure Flow Obstruction Voltage V Volts (V) Intensity I Amperes (A) Resistance R Ohms (Ω) Voltage (V)= Intensity(A) x Resistance (Ω)