In static electricity, charges build up on an object, but they do not flow continuously.
- True
- False
The Correct Answer and Explanation is:
The correct answer is:
1. True
Explanation
Static electricity is a phenomenon where electric charges accumulate on the surface of an object without continuous flow. Unlike current electricity, which involves a steady flow of electrons through a conductor, static electricity results from the buildup of charges in one place. This buildup typically occurs when two materials come into contact and electrons transfer from one to the other, leaving one object with an excess of electrons (negative charge) and the other with a deficiency of electrons (positive charge).
For example, when you rub a balloon on your hair, electrons transfer from your hair to the balloon. This transfer gives the balloon a negative charge and leaves your hair with a positive charge, resulting in an imbalance. However, these charges remain on the surface of the balloon and do not flow in a continuous manner like the electrons in an electrical circuit. As a result, the balloon can stick to other objects, like walls, due to the attraction between opposite charges. This attraction occurs because opposite charges attract, and the static charges on the balloon induce an opposite charge on the surface of nearby objects.
Since the charges are not moving or “flowing” continuously, they do not create an electric current, which is a defining characteristic of static electricity. Static discharge, however, can occur when there’s a sudden release of this stored charge, such as when you touch a metal object after walking on a carpeted floor, and you feel a small shock. This is because the accumulated charges on your body suddenly transfer to the metal in an attempt to neutralize the charge imbalance.
Overall, static electricity is a temporary, localized phenomenon resulting from charge accumulation, distinct from current electricity, which involves the continuous flow of charges through a conductor. This property is why the statement that “charges build up on an object, but they do not flow continuously” is true.