Kinetic and potential energy in Bohr Coulomb orbit (K = −E_n, U = 2E_n (E_n total negative))

jee-mainjee-advancedneet-ug

K = −E_n, U = 2E_n (E_n total negative)

What each symbol means

SymbolWhat it stands for
KKinetic energy (positive)
UElectrostatic potential energy (negative, bound)
E_nTotal mechanical energy (negative)

When to use this

1/r Coulomb force, circular orbit virial result.