Which of the following is an expression of Ohm's Law?

• A. Current = Voltage x Resistance
• B. Voltage = Power x Resistance
• C. Current = Voltage / Resistance
• D. Voltage = Current x Resistance

Answer: (D)

Ohm’s Law describes how voltage, current, and resistance are related through a simple proportionality: voltage equals current times resistance. This direct form, voltage = current × resistance, is the standard way the relationship is expressed and is exactly what the statement in this option conveys. It captures the driving idea that if you know how much current is flowing and the resistance it faces, you can determine the voltage across that element. The other options try to express the relationship differently: multiplying current by resistance would not yield current itself, and bringing in power isn’t part of Ohm’s Law. Keep in mind that Ohm’s Law can also be rearranged to I = V/R or R = V/I, but the canonical statement highlighted here is the voltage equals current times resistance.