I was going through MIT opencourseware https://ocw.mit.edu/courses/electri...s-spring-2009/readings/MIT6_013S09_chap07.pdf and I didnt understand exactly why in equation 7.1.37 and 7.1.38 in page 192 the divergence of transverse electric field is taken as zero ? The only reason this would be true is if the region is source free but we clearly see that this field does setup a surface charge density on the surface of the transmission line so intuitively and mathematically why would the divergence of Et be zero? I can always construct a surface in the transverse plane to include the transmission line which has charge and so the del.Et should be equal to the surface charge density isn't?(adsbygoogle = window.adsbygoogle || []).push({});

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Why is del(E_t) zero in TEM mode of transmission lines?

Have something to add?

Draft saved
Draft deleted

Loading...

Similar Threads - zero mode transmission | Date |
---|---|

Switch mode DC transformer equations? | Feb 7, 2018 |

Exponential forcing function to an RL circuit -- poles & zeros | Oct 22, 2017 |

Analog zero-point synced AC PWM: is there a better way? | Apr 17, 2017 |

AC Current in GHz Frequency and Zero Resistance | Mar 23, 2017 |

Zero sequence braking of induction motor | Mar 7, 2017 |

**Physics Forums - The Fusion of Science and Community**