Basic Linear Circuits Review
From Mech
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Contents |
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.
Coulomb (Charge)
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.
Amp (Current)
The Amp is a unit for the current flowing through a conductor
Common Electrical Components
| symbol | variable | units | |
|---|---|---|---|
| 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) |
