Source:New SAT Study GuideSAT Study Guide Explanations, Test 2; Test 2, Section 4; #22

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Which of the following expresses the square of the distance from the radio antenna in terms of the intensity of the radio signal and the power of the signal?

I = P/ (4(pie)r(squared)

在一个大的距离r从无线电天线,在tensity of the radio signal I is related to the power of the signal P by the formula above.

Which of the following expresses the square of the distance from the radio antenna in terms of the intensity of the radio signal and the power of the signal?

1 Explanation

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GravatarChris Lele, Magoosh Tutor

Apr 19, 2016 •Comment

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