According to Ohm's Law, how is voltage (V) related to current (I) and resistance (R)?

Disable ads (and more) with a premium pass for a one time $4.99 payment

Prepare for the MCAT with our comprehensive study tools. Access flashcards and multiple-choice questions, complete with hints and explanations. Get ready to achieve your medical school dreams!

Ohm's Law describes the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit. According to this law, voltage is directly proportional to the current flowing through a conductor and the resistance of that conductor. The correct expression for this relationship is indeed V = I * R.

In this equation, V represents the voltage, I represents the current in amperes, and R represents the resistance in ohms. This means that if you increase the current while keeping the resistance constant, the voltage across the conductor will also increase. Conversely, if resistance increases while the current remains constant, the voltage must increase as well. This fundamental principle is critical in understanding how electrical circuits operate and is widely used in various applications in physics and engineering.

By mastering the relationship defined by Ohm's Law, one can effectively analyze and predict how changes in one variable will affect the others in both simple and complex circuits.