HELP ME PLEASE!!!!!!
Show that the time-averaged stored electric and magnetic energy densities for time-harmonic fields are:
HELP ME PLEASE!!!!!! Show that the time-averaged stored electric and magnetic energy densities for time-harmonic fields...
. 1. The relations for the potential, electric and magnetic fields, and time averaged intensity are written in terms of spherical coordinates (cos θ pow ___ (_) sin[w(t-r/c)] V(r, θ, t) Scalar Potential: Hopow ATT -pop Α(r, θ,t) -sin[w(t-r/c)]2 Vector Potential: μοΡου-(-) cos[w(t-r/c)ja Electric Field: Ε--7V (3) 4π 7" Magnetic Field: B Vx A- 〈S) = (ww) sn-2- Intensity: Express these relationships in "coordinate-free" form, in which one is not committed to the spherical coordinate system. As an example, Po...
HELP with E-FIELDS.. please fully explain bc this question
confuses me
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3. The electric field and magnetic field components of a signal propagating in free space are given by E(z,t)-nHo cos(7.5x10 t-Bz)a H(z,t)- H,cos(7.5x10't-Bz)a, Find the values of β and η such that these expressions satisfy all of Maxwell's equations. OD OB (Hint: Use first and xE- to find β and 17, then show that the above c, a fields also satisfy V-D 0 and V B-0).
Typical large values for electric and magnetic fields attained in laboratories are about 1.8×104 V/mand 1.4 T .Determine the energy density for the electric field. Determine the energy density for the magnetic field. Compare two densities. What magnitude electric field would be needed to produce the same energy density as the magnetic field of 1.4 T ?
Electric Fields, Flux and Gauss' Law.
Help me please to answer on these questions. Thank you!
For situations a through e, use the definition of flux that you developed in Activity 1-3 to determine the electric flux passing through each surface. The electric field has magnitude 5.0 N/C at the location of the surface of area of 1.5 cm2. Show your calculations. b. 30° 30%
Typical large values for electric and magnetic fields attained in laboratories are about 2.8×1042.8×104 V/mV/m and 2.0 TT . Part A: Determine the energy density for the electric field. Part B: Determine the energy density for the magnetic field. Part C: Compare two densities. Part D: What magnitude electric field would be needed to produce the same energy density as the magnetic field of 2.0 TT ?
At an instant in time, the electric and magnetic fields of an electromagnetic wave are given by E = −6.23 ✕ 10−3k V/m and B = −2.08 ✕ 10−11i T. Find the Poynting vector for this wave. (Express your answer in vector form.)
At an instant in time, the electric and magnetic fields of an electromagnetic wave are given by E = −4.37 ✕ 10−3k V/m and B = −1.46 ✕ 10−11i T. Find the Poynting vector for this wave. (Express your answer in vector form.) S = ____ W/m2
Please write clearly the formulas and concepts behind it.
7. Calculate the electric and magnetic fields associated with the scalar and vector potentials Where b b()k is a time-varying vector with k being a unit vector. What kind of magnetic field is represented by this vector potential? (10 marks)
a) Show that if the electric and magnetic fields are static, no wave propagation results. b) Given part a), why does a wave travel in a switched DC circuit? Hint: consider the 14. frequency content of a step in voltage.