What is the relationship between voltage, current, and resistance known as?

• A. Kirchhoff's Law
• B. Ohm's Law
• C. Faraday's Law
• D. Watt's Law

Answer: (B)

The relationship between voltage, current, and resistance is known as Ohm's Law. This fundamental principle in electrical science states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance of the conductor. It can be mathematically expressed as V = IR, where V represents voltage, I represents current, and R represents resistance.

Understanding Ohm's Law is crucial for both analyzing and troubleshooting electrical circuits. It helps in determining how much current will flow for a given voltage and resistance, which is essential for designing circuits and ensuring safety in electrical installations. This law is foundational in electrical engineering and applies to many practical applications, including residential wiring, appliances, and industrial equipment.

The other options pertain to different principles: Kirchhoff's Law deals with the conservation of charge and energy in electrical circuits, Faraday's Law relates to electromagnetic induction, and Watt's Law connects power with voltage and current. Each of these laws has its specific applications, but Ohm's Law specifically addresses the relationship between voltage, current, and resistance.