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Homework Help: Power and pressure of radiation. Is my answer correct?

  1. Apr 22, 2016 #1
    1. The problem statement, all variables and given/known data
    5xvkv8.jpg

    2. Relevant equations
    E=100 kV/m E=cB
    B = E/c B=(100000/2.998*10^8) B=0.0003335557
    m = 10g = 0.01kg A=0.5mm^2 = 5*10^-7 m^2

    I = (EB)/(4п*10^-7) = (100000)(0.0003335557) / (4п*10^-7)
    I = 26543519.23
    3. The attempt at a solution
    a) Pressure = I/c = (26543519.23 )/(2.998*10^8)
    Pressure = 0.08853742237 N/m^2
    b)
    Power = IA
    a = Power/cm = IA/cm
    a = (26543519.23 )(5*10^-7) / (2.998*10^8)(0.01)
    a = 0.00000442687
     
  2. jcsd
  3. Apr 23, 2016 #2
    Hello?
     
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