Change in Potential - Part I

Determine if the change in electric potential energy DPE is positive, negative, or zero for the following situations (Assume particle model for electrons, protons, and hydrogen atoms):

1. Find DPE for an electron from i to f in diagram a.
2. Find DPE for a proton from i to f in diagram a.
3. Find DPE for a hydrogen atom from i to f in diagram b.
4. Find DPE for an electron from i to f in diagram b.
5. Find DPE for a hydrogen atom from i to f in diagram c.
6. Find DPE for a proton from i to f in diagram c.
   
   
   
   
   
7. Find DPE for a proton from i to f in diagram d.
8. Find DPE for an electron from i to f in diagram d.
9. Find DPE for a hydrogen atom from i to f in diagram e.
10. Find DPE for an electron from i to f in diagram e.