Q

In physics, "Q" typically represents electric charge, which is a fundamental property of matter that causes objects to experience electrical and magnetic forces. It is measured in coulombs and exists in two types: positive and negative. Protons carry positive charge, electrons carry negative charge, and the amount of charge determines how objects interact electrically—either attracting or repelling each other. Think of Q as a way to quantify how much electrical "stuff" an object has, influencing how it behaves in electric and magnetic fields.