title: Move a 3D object in COMSOL and calculate of charge in every position
body: <p>I am trying to solve with Comsol the problem of the figure<a href="https://i.stack.imgur.com/YoRCO.png" rel="nofollow noreferrer">Two blue big electrodes with fixed potentials V1,V2. One red small electrode that moves above the others along x axis at constant distance and voltage V0. The charge in V0 depends on the electric field at each point 8(x)</a>. I have one small electrode with a potential V0 moving along x axis above two bigger electrodes with fixed potentials V1,V2. </p>
  
  <p>I can easily compute with comsol the potential and field at each point in 3D and the resulting charge in V0 electrode. However i would like to simulate this charge along the x axis and eventually map it also for z and y direction so i have a V0 charge 2D map at a fixed distance.</p>
  
  <p>How can i do this in COMSOL without changing the geometry coordinates manually and computing again the charge at each point?</p>
  
  <p>Thank you for your answers,</p>
  
  <p>Jorge</p>