The maximum-power transfer theorem has effective applications in stereo amplifier design, where it is essential to maximize power delivered to speakers, and it is useful in electric vehicle construction, where it is required to maximize power supplied for driving a motor.
A network that consists of linear impedances & 1 or more voltage or current sources can be reduced to a Théven in equivalent circuit.When a load is connected to the terminals of this equivalent circuit, power is transferred from the source to the load.
A Thévenin equivalent circuit is publicized in diagram below with source internal impedance, z=(r +jx) Ω and complex load Z =(R+jX)Ω.
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