= Electronics = Both digital and analog components == Properties == _Voltage_ is the electrical potential. It is similar to water pressure in a pipe. Voltage is polarized, and relative, therefore it is often measured with respect to the earth, or _ground_. A parallel circut always has the same voltage across all components. _Current_ is the flow of electricity. It is similar to water flow in a pipe. Current is not polarized, and not relative. A series circut always has the same current across all components. These two are related via the following equation (Ohms law): V = I * R Where V is voltage (Volts), I is current(Amps), and R is resistance(Ohms). Power is Voltage times Current and is measured in Watts (W). Power is a rate upon which electrical energy is used. Also see * [[Impedance]] * [[Resonance]] == Primitive == * [[Resistor]] * [[Capacitor]] * [[Inductor]] * [[Fuse]] == AC/Radio == * [[Oscillator]] * [[ADC]] * [[DAC]] == Combinational == * [[multiplexer|Multiplexer]] == Sequential == * [[buffer|Buffer]] * [[Flip-flop]] * [[registers|Registers]] * [[counters|Counters]] == Theoretical == * [[K-map]] [[index]]