Lecture36 iq32

Maxwell equations and 1D plane EM waves

1. LC and LRC circuits: The amped envelop

2. Maxwell equations:

a. Gauss law

b. Gauss law for magnetism: No magnetic monopole

c. Ampere-Maxwell law

i. Piercing through a plane film

ii. Piercing through 3D film which includes E-flux in the gap

iii. Partial piercing

3. Ch24.h1: 15-16. 1D plane EW aves.

a. Switch on the current sheet at t=0.

b. B-flux passing through the front window 12341 and Faraday’s law

c. E-flux passing through the top area 12561 and Ampere-Maxwell’s law

d. v^2=1/(esp0 x mu0)

e. Measurement of esp0 and mu0 in static experiments.

Reflection: Faraday law and Ampere-Maxwell’s law enable the propagation of EM waves in vacuum.

Announcement:

Midterm 3, class average 71.

The lecture video in our homepage is now available for viewing. Keep in mind it is an experimental project. Your feedback is welcome.

Application of the LA position is now available. For those of you who do well in this course are encouraged to apply the LA job. LAs are playing an important part in helping students through their interaction with students. If you are interested in this job opportunity please contact Lisa Gentry*.

*Lisa’s contact information: Undergraduate Coordinator, Department of Physics

Ph: 512-471-8856  Fax: 512-471-9637

email address: ugaffairs@physics.utexas.edu