Effect of electromagnetic field of over head line (OHL) on human ?
Effect of electromagnetic field of over head line (OHL) on human ?
Homework Answers
The intensity of Electromagnetic fields due to over head transmission lines is very high. The scientific research states that low frequency high intensity E-fields show adverse biological effects on humans and it may also lead to skin effects, childhood leukemia/cancer. In view of public health, International Commission of Non-Ionizing Radiation and protection (ICNIRP) had prepared the standard limits on intensity of electromagnetic fields. The guidelines of ICNIRP suggest that the E-field should be below 10 kV/m for occupational exposure and below 5 kV/m for public exposure at a system frequency. Hence, a study related analysis and estimation of E-field intensity with reference to public exposure is of importance.
4. The electromagnetic field for an electromagnetic wave is given by EzE.cos(kx._ (ot + ф)2 Find...
4. The electromagnetic field for an electromagnetic wave is given by EzE.cos(kx._ (ot + ф)2 Find the magnetic field.
A changing magnetic field of an electromagnetic wave exists in the yz-plane. The wave is moving...
A changing magnetic field of an electromagnetic wave exists in the yz-plane. The wave is moving in the +y-direction. One magnetic field line which starts at (0, 0.2 m, 0) is directed in the -z-direction and has a magnitude of 0.40 T. Moving along in the +y direction a distance of dy (the differential of y), another magnetic field line is also direct in the -z-direction and has a magnitude of 0.41 T. What is the direction of the electric...
An electromagnetic wave has an electric field given by... Find the wavelength. An electromagnetic wave has...
An electromagnetic wave has an electric field given by...
Find the wavelength.
An electromagnetic wave has an electric field given by E(y,t) = [2.90 x 10^5 V/m cos(ky - ( 1.370 x 10^13rad/s )t)]k-hat. What is the wavelength of the wave?
if the magnetic field of an electromagnetic wave is in the +x-direction and the electric field...
if the magnetic field of an electromagnetic wave is in the +x-direction and the electric field of the wave is in the +y direction, the wave is traveling in what direction? Explain your answer.
The field of human relations has become increasingly important over the years as businesses strive to...
The field of human relations has become increasingly important over the years as businesses strive to understand how to do all of the following EXCEPT boost workplace morale. O motivate their ever more diverse employees to be more effective. O maximize employees' productivity. O boost company sales. maximize employees' creativity.
Given that the -field of an electromagnetic wave in vacuum is write an expression for the...
Given that the
-field of an electromagnetic wave in vacuum is
write an expression for the associated
-field. What is the direction of propagation?
What is the maximum strength of the B-field in an electromagnetic wave that has a maximum...
What is the maximum strength of the B-field in an electromagnetic wave that has a maximum E-field strength of 500 V/m? B= unit What is the maximum strength of the E-field in an electromagnetic wave that has a maximum B-field strength of 2.20×10^-6 T? E= unit
5. The figure shows a simple idealization of a human head on a neck. The head...
5. The figure shows a simple idealization of a human head on a neck. The head is a sphere with radius R and mass m; the neck is a pivot with a torsional spring with (torsional) stiffness K 5.1 Write down the total kinetic and potential energy of the system, in terms Of ? and d? / dt 5.2 Use the energy method to derive an equation of motion for ? 5.3 Find a formula for the natural frequency of...
The electric field of an electromagnetic wave in vacuum is ] (,t) = 12.0 cos(x -...
The electric field of an electromagnetic wave in vacuum is ] (,t) = 12.0 cos(x - m y + wt) Ê. a) Find the angular frequency. b) Find the magnetic field. c) Find the Intensity of the electromagnetic wave.
The electric field of an electromagnetic wave traveling in the vacuum of space is described by...
The electric field of an electromagnetic wave traveling in the vacuum of space is described by E = (4.60 ✕ 10−3) sin(kx − ωt) V/m. (a) What is the maximum value of the associated magnetic field for this electromagnetic wave? ____T (b) What is the average energy density of the wave? ___J/m3
4. The electromagnetic field for an electromagnetic wave is given by EzE.cos(kx._ (ot + ф)2 Find the magnetic field.
An electromagnetic wave has an electric field given by...
Find the wavelength.
An electromagnetic wave has an electric field given by E(y,t) = [2.90 x 10^5 V/m cos(ky - ( 1.370 x 10^13rad/s )t)]k-hat. What is the wavelength of the wave?
The field of human relations has become increasingly important over the years as businesses strive to understand how to do all of the following EXCEPT boost workplace morale. O motivate their ever more diverse employees to be more effective. O maximize employees' productivity. O boost company sales. maximize employees' creativity.
Given that the
-field of an electromagnetic wave in vacuum is
write an expression for the associated
-field. What is the direction of propagation?
5. The figure shows a simple idealization of a human head on a neck. The head is a sphere with radius R and mass m; the neck is a pivot with a torsional spring with (torsional) stiffness K 5.1 Write down the total kinetic and potential energy of the system, in terms Of ? and d? / dt 5.2 Use the energy method to derive an equation of motion for ? 5.3 Find a formula for the natural frequency of...
The electric field of an electromagnetic wave in vacuum is ] (,t) = 12.0 cos(x - m y + wt) Ê. a) Find the angular frequency. b) Find the magnetic field. c) Find the Intensity of the electromagnetic wave.
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