# The hypotenuse of the right triangle of a vector diagram for R and XC, is it the impedance?

##### 1 Answer

**Resistance** is the limitation to charge mobility due to the material through which charges can travel. **Capacitance** is just the capacitor's ability to store charge before it needs to release that charge as current.

**Impedance** is like an "overall resistance".

I've seen Impedance written as *Principles of Instrumental Analysis* textbook (Skoog, Holler, Crouch) is:

So yes, the hypotenuse of the vector diagram of this would be the impedance, when the phase shift

You can read more about it here:

http://www.learnabout-electronics.org/ac_theory/ac_ccts_51.php

(If someone else has more to add, go ahead)