ElectrostaticsEasy
Question
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 of the electron)
Options
A.

B.

C.

D.

Solution
According to Coulamb′s law the force of repulsion between the two positive ions in each of the charge q, separated by a distance d is given by


q2 = 4πε0Fd2
......(i)
Since, q = ne
where,
n = number of electrons missing from ion
e = magnitude of charge on electron
∴ n =
[Using (i)]



q2 = 4πε0Fd2
......(i)Since, q = ne
where,
n = number of electrons missing from ion
e = magnitude of charge on electron
∴ n =

[Using (i)]
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