You won't believe these 10 facts about people. An electrical circuit is a device that uses electricity to perform a task, such as run a vacuum or power a lamp. The circuit is a closed loop formed by a power source, wires, a fuse, a load, and a switch.
anxiety reaction a reaction characterized by abnormal apprehension or uneasiness; see also anxiety disorders. separation anxiety apprehension due to removal of significant persons or familiar surroundings, common in infants 12 to 24 months old; see also separation anxiety disorder.
Anxiety refers to feelings of worry, nervousness, or a sense of apprehension, typically about an upcoming event where the outcome is uncertain, or where the person feels he or she might not be up to the task. Anxiety is commonly experienced in high pressure situations, for example, prior to a making a speech or sitting an exam.