The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by
$B = 1.2 \times 10 ^ { - 6 } \sin \left[ 2 \pi \left( \frac { z } { 240 } - \frac { t \times 10 ^ { 7 } } { 8 } \right) \right]$
in SI units.Find the average power per square meter carried by the EM wave.

Question

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by

B = 1.2 \times 10 ^ { - 6 } \sin \left[ 2 \pi \left( \frac { z } { 240 } - \frac { t \times 10 ^ { 7 } } { 8 } \right) \right]

in SI units.Find the average power per square meter carried by the EM wave.

Quizplus · Accepted Answer

The Answer of The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by $$B = 1.2 \times 10 ^ { - 6 } \sin \left[ 2 \pi \left( \frac { z } { 240 } - \frac { t \times 10 ^ { 7 } } { 8 } \right) \right]$$ in SI units.Find the average power per square meter carried by the EM wave. A)720 W B)172 W C)500 W D)2 * 10⁷ W E)86 W

The Magnetic Field of a Plane-Polarized Electromagnetic Wave Moving in the Z-Direction