According to Ohm's law, which equation represents the relationship between voltage, current, and resistance?

Ohm's law is a fundamental principle in electrical circuits that describes the relationship between voltage (V), current (I), and resistance (R). The correct equation given by Ohm's law is V = IR, which indicates that the voltage across a conductor is equal to the product of the current flowing through it and the resistance of the conductor.

In this equation, if you increase the current while keeping the resistance constant, the voltage will increase proportionally. Similarly, if you increase the resistance while maintaining a constant current, the voltage will also increase. This linear relationship illustrates how voltage, current, and resistance are interrelated in an electrical circuit.

The other options presented do not accurately reflect Ohm's law. For instance, I = VR would suggest that current is equal to voltage multiplied by resistance, which is incorrect according to the fundamental equation of Ohm's law. R = VI and I = R/V also misrepresent the relationships, leading to misconceptions about how voltage, current, and resistance interact. Thus, the equation V = IR remains the essential formula that best captures the essence of Ohm's law.