NEET2010PhysicsElectrostaticsActual
Two positive ions, each carrying a charge q , are separated by a distance d . If F is the force of repulsion between the ions, the number of electrons missing from each ion will be ( e being the charge on an electron)
Options
- A4 ₀ Fd ^2 e ^2
- B4 ₀ Fe ^2 ~d ^2
- C4 ₀ Fd ^2 e ^2
- D4 ₀ Fd ^2 q ^2
Correct answer
C. 4 ₀ Fd ^2 e ^2
Step-by-step solution
Two positive ions each carrying a charge q are kept at a distance d , then it is found that force of repulsion between them is aligned F & = kqq d ^2 & = 1 4 ₀ q q ~d ^2 aligned where array ll where & q = ne & F = 1 4 ₀ n ^2 e ^2 ~d ^2 & n = 4 ₀ Fd ₂ e ^2 array