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Analyzing voltage graph values

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Gorath

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Ok this might be really trivial, but i'm really confused :cry:

Anyway; when a graph is plotted and a circuit is switched on, the voltage values on the graph do not rise to maximum value instantly, there is a curve towards the end, which then levels out onto a straught line. I mean i know that voltage is affected by current and resistance, but as voltage is the first thing that *happens* in a circuit, then how come it does not go to max voltage instantly. I hope you understand what i mean, as im sure i phrased this pretty badly :|

All help would be greatly appreciated
 

Voltage graph

Hi

it is because resitance is a part of more general concept called impedance (Z), such that V = I*Z. Z is composed by linear resistance R plus capacitive and indductive reactances, denoted as XC and XL respectively, so that Z = sqrt(R^2 + (XL - XC)^2).

It means that your circuit have capacitors and maybe inductors which provoque a delay in the voltage to reach its nominal value. This phenomena is called "transient response". Just as a simple example look at https://www.allaboutcircuits.com/vol_1/chpt_16/2.html

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Sal
 

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    Gorath

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