What is the result of an electric spark caused by static electricity?

The correct answer is the result of an electric spark caused by static electricity, which is a discharge of energy creating light and heat. When static electricity builds up on the surface of an object, it creates an imbalance of electrical charges. When the charge becomes strong enough, it can overcome the insulating properties of the surrounding air and discharge in a rapid manner, resulting in a spark. This spark emits light due to the ionization of air particles and generates heat, which can sometimes be significant enough to ignite flammable materials.

This phenomenon is commonly observed in everyday situations, such as when a person touches a doorknob after walking across a carpet and experiences a small shock, or when lightning occurs during a thunderstorm. The other options do not accurately describe the nature of static electricity discharges. For example, static electricity does not result in a continuous electrical current, nor does it create a permanent charge in the material involved; the discharge is temporary and the charge dissipates shortly after. Additionally, a significant effect is produced, contradicting the notion that there would be no effect at all.