Recent content by Lord33

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    How does the magnetization of an atom change at its center?

    I understand what we must take radius of atom but how i can modified a formula if r<ra?I find limit and get -inf it is wrong.I know that J=∑P/ΔV.
  2. L

    How does the magnetization of an atom change at its center?

    Homework Statement We have coaxial cabel with radius R and R0=3R filled with magnetic.Magnetization J(r)=(r3-R3)/(2R3)*I/(2*pi*r).What is the magnitization if r=0(center of atom)?And what a magnetization direction of atom? Homework EquationsThe Attempt at a Solution I think what magnitization...
  3. L

    Comparing Radio Waves: Short Wave vs. Phone/Radio

    What about the amplitude, how do I compare with short waves? If ampiluda will be 1026?
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    Comparing Radio Waves: Short Wave vs. Phone/Radio

    Homework Statement Flat harmonic electromagnetic wave propagates in the positive direction in vacuo axis y. Vector electromagnetic energy flux density is given by: S(y,t)=Sm *cos(wt-ky)2.Wave value: k=(2*π)/λ=0.41 m-1,Amplitude Sm=26 W/m2.Compare this wave with another wave. Homework Equations...