Consider a cell phone that emits electromagnetic radiation with a frequency of 1.0 GHz and with a power of 100 W. (a) What is the electric field amplitude at a distance 1000 m away from the phone? Assume it radiates as a point source. Submit Answer Tries 0/8 (b) If your ear is only about 10 cm from the source of radiation, what is the electric field amplitude at your ear as you use the phone? Again assume the phone radiates as a point source. Submit Answer Tries 0/8 (c) If the phone can be turned on and stays transmitting for 2 h before discharging the battery, how much energy can be stored in the battery? Submit Answer Tries 0/8

Consider a cell phone that emits electromagnetic radiation with a frequency of 1.0 GHz and with a power of 100 W. (a) What is the electric field amplitude at a distance 1000 m away from the phone? Assume it radiates as a point source. Submit Answer Tries 0/8 (b) If your ear is only about 10 cm from the source of radiation, what is the electric field amplitude at your ear as you use the phone? Again assume the phone radiates as a point source. Submit Answer Tries 0/8 (c) If the phone can be turned on and stays transmitting for 2 h before discharging the battery, how much energy can be stored in the battery? Submit Answer Tries 0/8

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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