Direct current/Basics
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Basic Equations[edit | edit source]
- P, Power is measured in Watts
- I, Current is represented in Amps
- E, Voltage is measured in Volts
- R, Resistance (and resistance potential) is measured in Ohms Ω
- C, Capacitance amount of stored electric charge
- P=IE ; Power= Current * Voltage
- E=IR ; Voltage= Current * Resistance
Theory[edit | edit source]
Voltage moves from the negative terminal to the positive terminal, but for application purposes it is viewed as positive to negative.
Ground in DC circuitry[edit | edit source]
Although it may seem counter intuitive, according to electric voltage theory, the ground on a DC circuit is the negative terminal.
References[edit | edit source]
Make: Electronics: Learning through discovery