Final answer:
If charged particle A exerts a force of 2.75µN to the right on charged particle B, then particle B exerts an equal and opposite force of 2.75µN to the left on particle A.
Step-by-step explanation:
The question pertains to the electrostatic force acting between charged particles. According to Newton's third law, if charged particle A exerts a force of 2.75µN to the right on charged particle B, then charged particle B must exert an equal and opposite force on charged particle A. Therefore, particle B exerts a force of 2.75µN to the left on particle A. This is a direct consequence of electromagnetism and Coulomb's law, which states that the force between two charges is proportional to the product of the charges and inversely proportional to the square of the distance between them.