AP EAMCET202317 May 2023Evening ShiftPhysicsElectrostaticsActual
An electron of charge ' e ' is moving round the nucleus of a hydrogen atom in a circular orbit of radius ' r '. The coulomb force F between the two is ( . here . K = 1 4 ₀ )
Options
- A- K e ^2 r ^3 r
- BK e ^2 r ^3 r
- C- K e ^2 r ^3 r
- DK e ^2 r ^2 r
Correct answer
C. - K e ^2 r ^3 r
Step-by-step solution
Using Coulomb's law, the force between two charges is given by F = k q ₁ q ₂ r ^3 r Here, charge of an electron, q₁=-e Charge of the nucleus, q ₂= e F = k (- e ) e r ^3 r =- ke ^2 r ^3 r