Clarification of Terms
Although this article uses the term "impedance", it strictly only applies to "resistance".
For example, given a load impedance of R+jX, and the source has a fixed resistance while the source reactance is sweeped for all values, we find that the load resistance has maximum power when the source reactance is -X.
Given the same load impedance of R+jX, this time with a fixed source reactance while the source resistance is sweeped for all values, we find that the load resistance has maximum power when the source resistance is 0.
So, maximum power is delivered to the load resistance when the load and source reactances are conjugates and the source resistance is 0.
Read more about this topic: Impedance Bridging
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