Question
A 2.50-m-diameter university communications satellite dish receives TV signals that have a maximum electric field strength (for one channel) of $7.50 \textrm{ }\mu\textrm{V/m}$ . (See Figure 24.28.) (a) What is the intensity of this wave? (b) What is the power received by the antenna? (c) If the orbiting satellite broadcasts uniformly over an area of $1.50 \times 10^{13} \textrm{ m}^2$ (a large fraction of North America), how much power does it radiate?
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1. $7.47 \times 10^{-14} \textrm{ W/m}^2$
2. $3.67 \times 10^{-13} \textrm{W}$
3. $1.12 \textrm{ W}$
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# OpenStax College Physics Solution, Chapter 24, Problem 35 (Problems & Exercises) (1:47)

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