You cause a particle to move from point A, where the electric potential is 15.1 V, to point B, where the electric potential is − 20.5 V. Calculate the change that occurs in the particle's electrostatic potential energy, when the particle is an electron, a proton, a neutral hydrogen atom, and a singly ionized helium atom (i. e., lacking one electron from its neutral state).

ou cause a particle to move from point A, where the electric potential is 15.1 V, to point B, where the electric potential is − 20.5 V. Calculate the change that occurs in the particle's electrostatic potential energy, when the particle is an electron, a proton, a neutral hydrogen atom, and a singly ionized helium atom (i.e., lacking one electron from its neutral state).

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.