diff --git a/tech/Capacitor.wiki b/tech/Capacitor.wiki
index 39a791d..d78567a 100644
--- a/tech/Capacitor.wiki
+++ b/tech/Capacitor.wiki
@@ -2,4 +2,4 @@
 
 A Capacitor is a component that stores energy in an electric field. It does
 this by having two plates seperated by a dielectric. This is called
-capactitance and is measured in farads.
+capactitance and is measured in farads (F).
diff --git a/tech/Impedance.wiki b/tech/Impedance.wiki
new file mode 100644
index 0000000..0457d0f
--- /dev/null
+++ b/tech/Impedance.wiki
@@ -0,0 +1,7 @@
+= Impedance =
+
+Ac voltage and current are often in phase, in something such as a resistor.
+However, they can become out of phase when passing through a [[Capacitor]] or
+[[Inductor]]. Capacitors are resistant to changes in voltage, causing voltage
+and current to get out of sync. Inductors are resistant to chagnes in current,
+causing voltage to get out of sync.
diff --git a/tech/Inductor.wiki b/tech/Inductor.wiki
new file mode 100644
index 0000000..b90d4d0
--- /dev/null
+++ b/tech/Inductor.wiki
@@ -0,0 +1,5 @@
+= Inductor =
+
+An Inductor is a component that stores energy in a magnetic field. It does this
+by using a current flowing through a coil of wire, often around a magnet.
+Inductance is measured in Henery's (H)
diff --git a/tech/electronics.wiki b/tech/electronics.wiki
index 52e50ee..0f96b31 100644
--- a/tech/electronics.wiki
+++ b/tech/electronics.wiki
@@ -28,7 +28,8 @@ upon which electrical energy is used.
 
 * [[Resistor]]
 * [[Capacitor]]
-* [[Incudctor]]
+* [[Inductor]]
+* [[Impedance]]
 
 == Combinational ==