What is the interaction between two charged particles called?

There are a number of laws and principles which govern the different interactions between the number of charged particles. While, the charge particles posses the specific orientation of net positive or negative charge on its surface which provides the required information about the same particles if it interacts with any other charged particle in its space or region of influence in which they can effect any number of test charges.

But, there is a specific law which explains the properties of a charge particle when it interacts with some other particle in a given space or region, which is termed as, "the Coulombs law".

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.