The magnetic field, as a function of position and time, of an electromagnetic wave away from its source is B(z, t) = – (8.25 × 10–9 T) ĵ sin[(1.38 × 104 rad/m) z – ω t)]. (a) Determine the linear frequency (in Hertz) and wavelength (in meters) of this wave. (b)Find the expression for the electric field (vector) with z and t as the only variables. (c) The wave is aimed at a 10cm × 10cm square which absorbs the wave completely. How much energy is delivered to the square each hour?

The magnetic field, as a function of position and time, of an electromagnetic wave away from its source is B(z, t) = – (8.25 × 10–9 T) ĵ sin[(1.38 × 104 rad/m) z – ω t)]. (a) Determine the linear frequency (in Hertz) and wavelength (in meters) of this wave. (b)Find the expression for the electric field (vector) with z and t as the only variables. (c) The wave is aimed at a 10cm × 10cm square which absorbs the wave completely. How much energy is delivered to the square each hour?

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