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If ZS=RS+jXS, ZL=RL, then condition for maximum power to be transferred is?(a) RL=|ZS|(b) RL=ZS(c) RL=-|ZS|(d) RL=-ZSThis question was addressed to me in exam.My question is based upon Maximum Power Transfer Theorem topic in division Steady State AC Analysis of Network Theory

Answer»

Right CHOICE is (a) RL=|ZS|

To EXPLAIN I WOULD say: If ZS=RS+jXS, ZL=RL, then condition for maximum POWER to be transferred is RL=|ZS| that is maximum power is transferred when the load resistance is equal to the magnitude of the SOURCE impedance.



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