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Network Theorems for Maximum Power Transfer in AC Circuits

Understand the principles behind Maximum Power Transfer Theorem in AC circuits. Learn the conditions for maximizing power delivery to the load in purely resistive AC circuits. Explore practical exercises for better comprehension.

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Network Theorems for Maximum Power Transfer in AC Circuits

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  1. Network Theorems (AC Circuits) D C Kulshreshtha

  2. Next Maximum Power Transfer Theorem for AC Circuits

  3. Next

  4. Next The power delivered to the load is Phasor current and voltage are where

  5. Next

  6. Next A little forethought saves us some work. (XTh + XL) absorbs no power; any nonzero value only reduces PL. Hence we can put XL = - XTh, so as to get

  7. Next This expression, we have already maximized for purely resistive case, by selecting RL = RTh. Hence, we must have

  8. Next Exercise Show that if the load is purely resistive in an ac circuit, the condition for maximum power transfer is

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