32. Electromagnetic Waves
Intro to Electromagnetic (EM) Waves
32. Electromagnetic Waves Intro to Electromagnetic (EM) Waves
9PRACTICE PROBLEM
A cylindrical wire of radius a, length b, and resistance R carries a current I. If the power per unit area carried by an electric and magnetic field at the surface of the wire is (I2R) / (2πab), what should be the flux of the Poynting vector over the surface of the wire?
A cylindrical wire of radius a, length b, and resistance R carries a current I. If the power per unit area carried by an electric and magnetic field at the surface of the wire is (I2R) / (2πab), what should be the flux of the Poynting vector over the surface of the wire?