Page 190 - Basic Electrical Engineering
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Figure 2.99
2.8.5 Maximum Power Transfer Theorem
Power is supplied from a source to a load. Figure 2.100 shows a generator
with internal resistance, R supplying power to a load resistance, R .
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Maximum power transfer theorem tells us at what load (i.e., at what value of
R ) maximum power will be transferred from the source to the load.
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Let us arrive at the condition of maximum power transfer through the
following calculations and thereafter state the related theorem.
Current,
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Let power consumed by or delivered to the load be P . Since power = I R,
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