Introduction To Health Physics
5th Edition
ISBN: 9780071835275
Author: Johnson, Thomas E. (thomas Edward), Cember, Herman.
Publisher: Mcgraw-hill Education,
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Question
Chapter 2, Problem 2.29P
(a)
To determine
What is the amplitude of the magnetic field vector if the maximum amplitude of the electric vector in a plane wave in free space is 275 V/m?
(b)
To determine
What is the rms value of the electric vector?
(c)
To determine
What is the power density, in mW/cm2, in this
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Students have asked these similar questions
(a)
The magnetic field intensity H of an electromagnetic wave propagating in
free space in the z-direction is described in phasor form by H = îH¸e¯i
where B is its phase constant. Determine the corresponding electric field from
Ampere's law.
A long straight wire in air carries a current of 5 A. What is the magnetic field
intensity H at a radial distance of 5 m from the wire?
(b)
A battery of open circuit voltage 2 V and internal resistance 50 2 is connected
via a rapid switch to a transmission line of characteristic impedance 50 N
terminated in a load of 100 N. Calculate the voltage and current on the line
just after the switch is closed, explaining your answer carefully.
(c)
The magnetic field in a plane electromagnetic wave is represented by the equation B = Bmax sin(ky - wt)î where Bmax = 2.94 x 10 T and k = 5.86 x 10' /m. (Assume a standard xyz right-handed coordinate system.)
(a) What is the magnitude and direction of the electric field at the instant the magnetic field is a maximum? (Express your answer in vector form.)
Emax - 88.2k
V/m
(b) What is the wavelength of the wave?
10.7
How is the wavelength of EM waves related to the wave number? nm
(c) What is the frequency of the wave?
2.80E-15
How is the frequency related to the wavelength? Hz
Consider a sinusoidal plane electromagnetic wave propagating in +z direction
in vacuum.
If the amplitude of the electric field component of the wave is (6 V/m)î,
what is the magnitude and the direction of the magnetic field component?
Chapter 2 Solutions
Introduction To Health Physics
Ch. 2 - Two blocks of mass 0.1 kg and 0.2 kg approch each...Ch. 2 - A bullet whose mass is 50 g travels at a velocity...Ch. 2 - Compute the mass of the Earth, assuming it to be a...Ch. 2 - An automobile weighing 2000 kg and going at a...Ch. 2 - A small electrically charged sphere of mass 0.1 g...Ch. 2 - A capacitor has a capacitance of 10F . How much...Ch. 2 - A small charged particle whose mass is 0.01 g...Ch. 2 - Prob. 2.8PCh. 2 - Prob. 2.9PCh. 2 - Prob. 2.10P
Ch. 2 - Prob. 2.11PCh. 2 - Prob. 2.12PCh. 2 - Prob. 2.13PCh. 2 - Prob. 2.14PCh. 2 - Prob. 2.15PCh. 2 - A current of 25 mA flows through a 25-gauge wire,...Ch. 2 - An electron starts at rest on the negative plate...Ch. 2 - Prob. 2.18PCh. 2 - Prob. 2.19PCh. 2 - Prob. 2.20PCh. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - Prob. 2.23PCh. 2 - (a) A 1000-MW(e) nuclear power plant operates at a...Ch. 2 - Prob. 2.25PCh. 2 - Prob. 2.26PCh. 2 - Prob. 2.27PCh. 2 - The specific heat of water in the English system...Ch. 2 - Prob. 2.29PCh. 2 - Prob. 2.30PCh. 2 - Prob. 2.31PCh. 2 - Prob. 2.32PCh. 2 - How many cubic meters of water must fall over a...Ch. 2 - (a) Calculate the speed of a 25-MeV proton. (b)...Ch. 2 - Prob. 2.35PCh. 2 - Prob. 2.36PCh. 2 - Calculate the speed of a (a) 0.5-MeV electron and...Ch. 2 - How much sub-butuminous coal (20,000 kJ/kg) would...Ch. 2 - Prob. 2.40PCh. 2 - How much oil (138,690 Btu/gal) would it take to...Ch. 2 - How much oil (138,690 Btu/gal) would it take to...Ch. 2 - Prob. 2.43PCh. 2 - Prob. 2.44PCh. 2 - Prob. 2.45PCh. 2 - Prob. 2.46PCh. 2 - Prob. 2.47PCh. 2 - Prob. 2.48PCh. 2 - Prob. 2.49P
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