Recent content by Mary001

It is a question from my mid-exam sample Oh really? I've read some documents and they say electric field in a hollow cylinder is zero. I can see that in this case, as the finite is finite, there is electric field. But why's that? Yep, I can. Is it how I should start with to find the work...

How an electron moves when it is released from rest to a positively charged hollow cylinder? The hollow cylinder is finite and insulating. The electron is constrained to move only in z direction (into the center of the hollow cylinder). My thinking is that there is no electric field inside the...