Recent content by TESL@

Also, please don't choose Bohm or the consciousness thing. :smile:

F=ma, like the concept of frames, is purely empirical from the beginning. Force and momentum are circularly defined.

Thank you. So in this "simple picture", are we neglecting current decay due to ion-ion collisions? And I guess electron-ion collisions are too effective to ignore.

1. Current is induced, I assume no collisions happened. 2. The current dissipated into "heat". My problem is about the concept of heat.

Your second point is true as long as you offset the potentials of all the charges in the system wrt. the ground you take.

q(Vf - Vi) is correct for the work done by the force opposing the electric force. If the work done by electric field was being considered, it would be q(Vi - Vf).

Hello PF, This has been frustrating me for a while: The plasma inside a tokamak is being heated by current induction, which accelerates the ions and electrons in specific directions, thus the velocity of ions increase. These ions collide with each other, eventually randomizing the motion. Now...

Thanks for the correction.

TiO2 absorbs UV well and it is also very resistant. Beryllium and these are other materials used.

Your English is confusing, but are you saying that UV is re-emitted as visible light in the atmosphere?

Unknown, or more technically, in the superposition of two states.

Thank you both.

110 Nm

His first sentence sounds to me like he has understood the question differently, as if the field is generated inside the chamber.

I am asking what if the solenoid is outside the chamber, in the middle of the toroid.