Which process creates static charge on a substance?

Which process creates static charge on a substance?

• A. By adding or removing electrons.
• B. By changing temperature.
• C. By altering pressure.
• D. By changing volume.

Answer: (A)

Static charge comes from having an unequal number of electrons on an object. When an object gains electrons, it becomes negatively charged; when it loses electrons, it becomes positively charged. So the process of adding or removing electrons directly creates a static charge. Temperature, pressure, or volume don’t by themselves create a net charge—they can affect how easily charges move, but they don’t generate charge on their own. For example, rubbing a balloon on hair transfers electrons, giving the balloon a static charge.

Static charge comes from having an unequal number of electrons on an object. When an object gains electrons, it becomes negatively charged; when it loses electrons, it becomes positively charged. So the process of adding or removing electrons directly creates a static charge. Temperature, pressure, or volume don’t by themselves create a net charge—they can affect how easily charges move, but they don’t generate charge on their own. For example, rubbing a balloon on hair transfers electrons, giving the balloon a static charge.