What does Ohm's law state?

Ohm's law describes the relationship between voltage, current, and resistance in an electrical circuit. The fundamental expression of Ohm's law is represented as V = I × R, where V stands for voltage, I represents current, and R denotes resistance. This tells us that the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance of the conductor.

The statement that it takes one volt to push one amp through one ohm accurately reflects the relationship articulated by Ohm's law. By rearranging the formula, we see that if the voltage is one volt and the resistance is one ohm, it results in a current of one amp. This is a fundamental concept in electrical engineering that helps to understand how circuits operate.

The other options do not fully capture the essence of Ohm's law. For instance, stating that current equals voltage times resistance implies a misinterpretation of the law, as the actual relationship involves multiplication of voltage by resistance to find current. Similarly, while resistance can be thought of as the ratio of voltage to current, the phrasing deviates from the standard expression of Ohm's law. Lastly, the assertion that voltage is constant in all electrical circuits