1. The problem statement, all variables and given/known data An electron, initially at rest, is accelerated by a potential V in a vacuum and then travels horizontally in a region of space where there is an electric field, E, and a magnetic field, B. The fields are aligned such that the electron is subjected to a force eE upwards and a force evB downwards, where e is the charge of the electron and v is its velocity. If E = 1000 V/m and B = 1 × 10^(-5) T, what is the value of the initial accelerating voltage V for the electron to continue flying undeflected? (Take m=10^(-30) kg and e=1.6×10^(-19) C) 2. Relevant equations No idea. 3. The attempt at a solution No idea.