Question Detail
Question
Ohm's law can be used only to a ______ circuit or component.
Correct Answer
Option D is the correct answer.
Detailed Explanation
Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points. This relationship (V = IR) holds true for linear components, where the resistance is constant regardless of the applied voltage or current. Non-linear components, such as diodes or transistors, do not obey Ohm's law.
Hint
Consider the relationship between voltage and current in an ideal resistor.