Doesnt resistance mean same as impedance??

@larry5729

pls watch all three to learn

Okay, Okay - we get it now:

'Resistance opposes Flow'

'Impedance rejects change'

Therefore:

Remocrats - go <against> the flow

Depublicans - impede all change  

and somewhere in there is a Phrase Change function too....

{ducking...}

Jim

In simple electronic models, a resistor is considered perfect as is a capacitor and an inductor. In practice, they all are flawed and have small elements of each other in their behaviour. For example a simple inductor can be a coil of wire, but obviously a length of wire has resistance.

Impedance is the real-world aspect of a circuit made up of resistors, inductors and capacitors. It accounts for e.g. voltage and current not being always in phase. In domestic audio, the measurement is encountered most reliably when describing loudspeakers with passive crossovers.

Impedance is resistance under load.

"There is NO frequency with DC, which is WHY, "resistance is constant".

The above is NOT true. You can still apply AC to simple resistance and its resistance will still NOT change, whereas a capacitor and/or an inductor’s resistance WILL change with AC.

Here is a table which shows how various components will respond to application of AC or DC voltage:

                  Resistor                            Inductor                    Capacitor
-----------------------------------------------------------------------------------------------

DC             constant R                        transient                   transient

AC             constant R                        varying R                  varying R