Introduction To Health Physics
Introduction To Health Physics
5th Edition
ISBN: 9780071835275
Author: Johnson, Thomas E. (thomas Edward), Cember, Herman.
Publisher: Mcgraw-hill Education,
Question
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Chapter 2, Problem 2.30P

(a)

To determine

What is the power density in this field, mW/cm2 if an electromagnetic wave has a frequency of 2450 MHz and a maximum electric field intensity of 100 mV/m?

(b)

To determine

What is the maximum magnetic field intensity in this wave?

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Electromagnetic radiation from a 4.95-mW laser is concentrated on a 0.95-mm2 area. Part (a)  What is the intensity of the radiation falling on this surface, in watts per square meter?  Part (b)  Suppose the surface carries a 2.00-nC electric charge. What is the maximum magnitude of the electric force, in newtons, it experiences?
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Introduction To Health Physics

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