Recent content by Shan Ravi

Oh... so you change the reference... Thnx :) btw, this means the thing done in the post, I gave link to, is wrong... rite?

Absolutely. All my doubt is: If you refer this - "Feynman Lectures Vol II Section 14-3" - he has written the formula for Potential (difference with the reference at infinity) arising due to infinitely long charged cylinder. Jus' show me the derivation of that.

The formula in the image is for an infinitely long charged cylinder. The formula given is right (At least Feynman says so! - Refer the section I've mentioned earlier) My question is: In deriving the formula for the potential, do you put ln(infinity) = 0 as in the linked thread (the part is...

http://www.flickr.com/photos/37453425@N07/3522609499/in/photostream/ This is the link to the image... no idea why isn't it being displayed.

Potential difference is what which makes sense. But calculating the potential difference b/w two points and one of them being infinity, where we define potential to be zero, we can actually find the potential at the point. Fine, agreed. Now, how do you define the potential at infinity to be...

Ooh... thnx :)

http://www.flickr.com/photos/37453425@N07/3447068420/ This is the image... no clue why isn't it being displayed..

Feynman's "apparent" paradox - Electromagnetism This is the paradox discussed in chapter 17 of "Feynman Lectures on Physics - Vol II" http://www.flickr.com/photos/37453425@N07/3447068420/ Say suppose the battery drains out or somehow you stop the current outta the battery. By...

Its not easy to calculate E.Field due to dipole using Gauss Law. It is because you'll have to choose a gaussian surface such a way that you are able to calculate the E.Field there. Remember Gauss's law basically tells about the flux and *not* of E.Field.

But the speed it has also traveling normally (I mean before superposing). So do you mean to say that the speed of the transverse vibration of the particles increases during superposition? By the way, where can I read the AJP paper?

When two waves traveling in opposite direction say in a thread, superpose the shape of the thread becomes flat. Where is the energy stored in the thread now. When a single is travelling, we say energy is stored as potential energy. But here there is no displacement of the thread in the vertical...