Basic Linear Circuits Review
Common Measurements and Units
In the representations of measurements such as charge, voltage, current, and power, an uppercase letter (C, V, I, P) implies that it is constant, and a lowercase letter (c,v,i,p) implies that it is time-variant.
The coulomb is the SI unit for charge.
Volt (Electric Poential)
The volt is a unit for the potential energy between two points. 1 volt is equal to 1 Joule per Coulomb (V=J/C). Current tends to flow from high voltage to low voltage.
The Amp is a unit for the current flowing through a conductor
Common Electrical Components
|current source||File:Current source symbol.jpg||I||Ampere (A)|
|voltage source||File:Voltage source round symbol.jpg or File:Voltage source batt symbol.jpg||V||Volt (V)|
|resistor||File:Resistor symbol.jpg||R||Ohm (Ω)|
|capacitor||File:Capacitor symbol.jpg or File:Capacitor polarized symbol.jpg (polarized)||C||Farad (F)|
|Inductor||File:Inductor symbol.jpg||L||Henry (H)|