Assertion: hydrogen atom's nucleus | /r/CapableOf | recall earlier equation
Facets:
value: for the potential
type: PURPOSE
value: due to a point charge
type: CAUSE
Source sentences:
text: The nucleus has a positive charge Zq e ; thus, [latex]V=\frac{kZq_e}{r_n}\\[/latex], recalling an earlier equation for the potential due to a point charge.