Repeat Problem 1 for a wave traveling in a lossy medium in which The box has dimensions A...

Repeat Problem 1 for a wave traveling in a lossy medium in which

The box has dimensions A = 1 cm, b =2 cm, and c = 0.5 cm.

Problem 1

Consider the imaginary rectangular box shown in Fig. 1.

(a) Determine the net power flux P(t) entering the box due to a plane wave in air given by

 

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(b) Determine the net time-average power entering the box.

Figure 1

Imaginary rectangular box.