# AC Circuit Theory Maximum Power Transfer

I am currently hitting a barrier with regards to the basics of this question.

A 50HZ supply is connected to various given impedance's, calculate the maximum power transfer.

Maximum power transfer I understand is basically the Thevenin/Norton equivalent.

Though THERE IS NO EMF indicated in the question.

Is there a method around this problem (Calculate the Norton/Thevenin with only Impedance values)?

Any help would be superbly fantastic

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We need the specific structure of the circuit so that we can give you specific Hints. But the method for this question is, do the Thevenin analysis of your circuit: (1) Short circuit all emfs in the circuit and calculate the impedance at your terminals, (ii) calculate the $V_AB$ so that you have the Thevenin emf. The load therefore will have to match the internal impedance of your equivalent circuit, for maximum power transfer. Try it. –  JKL Feb 23 '13 at 13:50