What is Ohm's Law?

• A. Voltage (V) = Resistance (R) x Power (P)
• B. Voltage (V) = Current (I) + Resistance (R)
• C. Voltage (V) = Current (I) x Resistance (R)
• D. Voltage (V) = Current (I) - Resistance (R)

Answer: (C)

Ohm's Law states that the voltage across a conductor is directly proportional to the current flowing through it, with the resistance being the constant of proportionality. This relationship is mathematically expressed as Voltage (V) = Current (I) x Resistance (R).

When you rearrange the formula, you can see how voltage, current, and resistance are interrelated. For instance, if you know the current flowing through a resistor and its resistance, you can easily calculate the voltage across it. This principle is fundamental in electrical and electronic engineering and provides the basis for analyzing and designing circuits.

Understanding this relationship is crucial for anyone working with electrical systems or studying electrical science, as it forms the foundation for more complex concepts like power calculations and circuit behavior under different load conditions.