Answer:
Explanation:
The work done on alpha is given by
Charge on alpha particle is 2 the electron charge
The potential at center
The electric potential due to multiples point charges is given by
where =charge on electron
=charge on alpha particle
But and is equal for all charges so ( 2) is equal to
The radius is given by
Substitution in (3) yields
The potential at mid point
due to lower charges the radius is given by
And for upper charges the radius is
So the electric potential is
The work done on the charge is equal to
The work done on is given by
The potential at center
The electric potential due to multiples point charges is given by
But and is equal for all charges so ( 2) is equal to
The radius is given by
Substitution in (3) yields
The potential at mid point
due to lower charges the radius is given by
And for upper charges the radius is
So the electric potential is
The work done on the charge is equal to