Kaplan Nursing Entrance Practice Exam 2026 – The All-in-One Guide to Exam Success!

Ohm's Law defines the relationship between voltage, current, and resistance in an electrical circuit. According to this law, the voltage drop across a resistor is directly proportional to the current flowing through it. The mathematical formulation of Ohm's Law is expressed as V = I × R, where V represents voltage, I represents current, and R represents resistance. This means that if you increase the current flowing through the resistor while keeping the resistance constant, the voltage drop across the resistor will also increase proportionally. Understanding this relationship is essential in circuit analysis and helps predict how varying levels of current impact the voltage in electrical systems.