Concept explainers
A cell phone antenna picks up a call. If the antenna and cell phone are modeled as shown in
Fig. P5.129,
(a) Find
(b) Determine the value of
(c) Determine the corresponding value of
(d) Find
(e) Determine the amount of power lost in
(f) Calculate the efficiency
(g) Determine the value of
(h) Given the change in (g), what is the new value of
(i) Given the change in (g), what is the new value of
(j) Comment on the results obtained in (i) and (b).
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Basic Engineering Circuit Analysis
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