The electric field in an electromagnetic wave is given by E = 50sin((2π/λ)(ct - x)) N/C. Calculate the energy contained in a cylinder of cross-section 10cm^2 and length 50 cm along the axis.
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Solution
Dear student,
energy density is given by uE=12∈oE2
multiply by volume to this and get total energy put value of E from equation altough calculation of this will be very tough