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Get Full Access to College Physics - 1 Edition - Chapter 24 - Problem 21pe
Get Full Access to College Physics - 1 Edition - Chapter 24 - Problem 21pe

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# (a) The ideal size (most efficient) for a broadcast

ISBN: 9781938168000 42

## Solution for problem 21PE Chapter 24

College Physics | 1st Edition

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Problem 21PE

Problem 21PE

(a) The ideal size (most efficient) for a broadcast antenna with one end on the ground is one-fourth the wavelength ( λ / 4 ) of the electromagnetic radiation being sent out. If a new radio station has such an antenna that is 50.0 m high, what frequency does it broadcast most efficiently? Is this in the AM or FM band? (b) Discuss the analogy of the fundamental resonant mode of an air column closed at one end to the resonance of currents on an antenna that is onefourth their wavelength.

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Solution  21PE

= 1.50x106 Hz

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