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Physics, 22.06.2019 00:20
Suppose that an electromagnetic wave which is linearly polarized along the xβaxis is propagating in vacuum along the zβaxis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity Ο, magnetic permeability Β΅ and electric permittivity Ξ΅. (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 ^β1 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.
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Physics, 22.06.2019 04:00
If steel is more dense that lake water, why can a boat float
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Physics, 22.06.2019 08:30
If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.
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Physics, 22.06.2019 14:30
Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2
Answers: 1
Problem 7. At time t a particle moves so that : r(t) = ? 1/2 t 2 + 1? i + ? 1 3 t 3 β 1 ? j (a) Find...
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