Which scientific principle relates current, voltage, and resistance?

Which scientific principle relates current, voltage, and resistance?

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

Answer: (C)

The scientific principle that relates current, voltage, and resistance is Ohm's Law. Ohm's Law states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. This relationship can be expressed mathematically as I = V/R.

Ohm's Law is fundamental in electrical engineering and electronics because it provides a clear and simple formula to calculate any of the three variables when the other two are known. Understanding Ohm's Law is crucial for the analysis and design of electrical circuits, as it helps determine how much current will flow for a given voltage and resistance.

Other principles mentioned, such as Fleming's Rule, Faraday's Law, and Kirchhoff's Law, apply to different aspects of electrical theory. Fleming's Rule relates to the direction of force in motors and generators. Faraday's Law deals with electromagnetic induction and how voltage is produced in a circuit due to a changing magnetic field. Kirchhoff's Law encompasses the principles of current and voltage conservation in electrical circuits but does not specifically relate current, voltage, and resistance to one another in the straightforward manner that Ohm's Law does.