What are the impedance matching techniques?

Impedance matching is setting the input impedance (load) equal to the fixed output impedance (source) to which it is connected, in order to maximize the power transfer. Matching is obtained when...

If the line impedance is Z0 and the load is ZL then connect the load using a transformer with N turns ration. N=sqrt(Z0/ZL)

..of what? to a house, to a breaker (to lower fault current level?), to an amplifier circuit?

to reduce reflection loss from the load

An impedance matching device is used to test the resistance, inductive reactant and capacitive reactant in a circuit. If one component did not match the impedance of the conductor, some of the...