This property can be used to create circuits that filter out a particular frequency from a complex signal.  
This property can be used to create circuits that filter out a particular frequency from a complex signal.  Its namesake reactance is given by two pi times the signal frequency times this, and it is positive because the phase of the voltage leads the phase of the current. For a single loop of wire, this is given by phi over I, where phi is the magnetic flux through the loop and i is the current. FTP, name this property, commonly measured in henries, whereby a changing current induces an electromotive force that opposes the change in the current.
This property can be used to create circuits that filter out a particular frequency from a complex signal.  
inductance