Answer:
The value is 
Explanation:
From the question we are told that
The magnitude of the charge of each positive charge for the first case is 
The distance between the charges for the first case is 
The force between the charges for the first case is 
The magnitude of the charge of each positive charge for the second case is 
The distance between the charge for the second case is 
Generally for the first case the force between the charge is mathematically represented as

Where k is the Coulomb constant with value 
So

Generally for the second case the force between the charge is mathematically represented as


=> 
=> 
=> 