Bennett Mechanical Comprehension Practice Test 2026 – The Complete All-in-One Guide to Exam Success!

Electrons flow in a circuit due to the difference in electric charge, known as voltage. They move from areas of negative charge (where there are more electrons) to areas of positive charge (where there are fewer electrons). This flow is driven by the desire of electrons to equalize the charge distribution within the circuit.

Choosing the correct answer highlights an understanding of basic electrical principles: electrons are negatively charged particles, and they are attracted to positive charges while being repelled by negative charges. This principle underlies the operation of electrical circuits, as the movement from an area of higher electron concentration to an area of lower concentration creates a flow of current, which is the basis for powering various devices.

The other options do not accurately describe the behavior of electrons in a circuit. For example, the idea of electrons moving from a place with no electrons is misleading, as it ignores the necessity of having a charge difference to facilitate flow. Ultimately, understanding this concept is crucial for grasping how electric circuits operate effectively.