<aside> 📌 Table of contents

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Part 1

What is electricity

• Bohr-Rutherford diagram and electron theory
• Transfert of electrons from one atom to another (ion, cation/anion) → electricity flow
• Definition of V, A and Ohm
• Analogy with water flow
• Electrical power P = VI

Schematic

• Basic schematics representations
• Ohm law: U = RI
• Power through a resistor

Kirchov’s voltage law

• The sum of all voltages across a closed loop circuit is zero
• Series circuit → voltage adds itself

Kirchov’s current law

• Parallel circuits → voltage stays the same, but current is evenly split
• The sum of all currents entering and exiting a node must equal zero
• Adding batteries in parallel will not increase the intensity, but it will extend battery life by reducing the amount of drawn energy

Circuit simulation