Mechanics Practice Exam

Ohm's Law is a fundamental principle in electronics and electrical engineering that describes the relationship between voltage, current, and resistance in an electrical circuit. The correct statement indicates that voltage equals current multiplied by resistance, which can be mathematically expressed as V = I * R, where V represents voltage, I represents current, and R represents resistance. This law shows that for a given resistance, an increase in voltage will result in an increase in current, and vice versa.

Understanding this relationship is essential for analyzing electrical circuits. If you know two of the three values (voltage, current, resistance), you can always calculate the third. This principle underlies many applications in both theoretical and practical electronics, allowing engineers to design and troubleshoot circuits effectively.