Electric Charge

The force between two point charges is given by Coulomb's Law: Where:
- is the force between the charges,
- is Coulomb's constant, - and are the magnitudes of the two charges,
- is the distance between the charges. Initially, the charges are and .
The force between them is:
Now, if 30% of the charge from (which is ) is transferred to , the new charge on becomes and the new charge on becomes . The new force between the charges is: Thus: Comparing the new force with the initial force , we have:
Thus, the force between the charges becomes .