When an accelerated ion strikes a neutral atom at a pressure of 10m Hg in a discharge tube then why does the ionization of the gas present in the discharge tube further increases ? I meant , What happens when a charged accelerated particle strikes a neutral particle ? 1) Does the neutral...

Please anyone can explain me the cycloid path of a charged particle in mutually perpendicular electric and magnetic field.. I have a lot of confusion over it...

I am having a difficult time answering this question. On one hand, I know that it can be pos or negative. On the otherhand I read that it has only been measured as negative. So would that mean its more negatively charged?

I've always liked infinite series. Here's one maybe you'll like to tackle. Not too bad. Find the sum of: \sum_{n=1}^{\infty}\frac{(-1)^{n-1}\cdot{6n}}{e^{2n}} It does converge.