Answer:
Charge on two particles is given as

Explanation:
As we know that the electrostatic force between two charges is given by formula

so we will have



so we have


Answer:
<h3>Standard unit is a standard measure that remains the same whenever, wherever and by whoever it is used. eg: The standard unit of time is second.</h3>
The answer is A, Cell. This is the basic structure of a cell.