Oh man that was a snoozefest.
I almost put myself to sleep!
I never promised that deriving normal and tangential electric field components across media would be exciting. Maybe for some.
Anyway, here's what we covered today:
Wrapped up electrostatic energy storage. We looked at it from the field quantities point of view, so no need to know the charge density. We derived a few expressions for the total energy storage. We then related these to a new concept, which was the electrostatic energy density. To cap that off, we found the energy stored in a parallel plate capacitor arrangement.
Phase two of the lecture was an example of the difference in the electric field and the electric flux as we passed from one medium to another within concentric dielectric spheres.
The final phase of the lecture was about the normal and tangential components of the electric field as we passed from one medium to another. I am sure everyone was quite bored by this, but please review your notes about it because it is important material.
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