Along, hollow, cylindrical conductor (inner radius = 2.0 mm, outer radius = 4.0 mm) carries a current of 12 a distributed uniformly across its cross section. a long wire which is coaxial with the cylinder carries an equal current in the same direction. what is the magnitude of the magnetic field 3.0 mm from the axis?
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The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
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Along, hollow, cylindrical conductor (inner radius = 2.0 mm, outer radius = 4.0 mm) carries a curren...
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