Page 201 - Basic Electrical Engineering
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For maximum power transfer, R  = R            i
                                                      L

               ∴                 R  = 9.33 Ω
                                 L


               Current,









               Maximum power transferred


                                2
                           P  = I R L
                          L
                                       2
                               = (0.214)  × 9.33 Watts
                               = 0.42 Watts


               P  (max) can also be calculated using the relation, P  (max)
                                                                              L
                 L






               Example 2.35    Calculate the value of load resistance R  for which
                                                                                   L
               maximum power transfer will occur from source to load. Also calculate the

               value of maximum power and power transfer efficiency.




















                                                         Figure 2.115

               Solution:
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