Answers: 2
Physics, 22.06.2019 00:20
Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.
Answers: 1
Physics, 22.06.2019 18:00
Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?
Answers: 2
Physics, 22.06.2019 18:30
Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
Answers: 1
What is mass and energy, power, work...
Computers and Technology, 20.09.2019 06:30
Mathematics, 20.09.2019 06:30
Computers and Technology, 20.09.2019 06:30
Biology, 20.09.2019 06:30
Mathematics, 20.09.2019 06:30
History, 20.09.2019 06:30
Geography, 20.09.2019 06:30
History, 20.09.2019 06:30
History, 20.09.2019 06:30
History, 20.09.2019 06:30
Geography, 20.09.2019 06:30
Mathematics, 20.09.2019 06:30
Biology, 20.09.2019 06:30