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, which states V=IR, is fundamentally applicable only to linear circuits or components. A linear component is one whose resistance R remains constant regardless of the applied voltage or current. Components with variable resistance (e.g., diodes, transistors) are non-linear and do not strictly obey Ohm's law.
Hint
Consider the property that defines a component as 'Ohmic' or 'non-Ohmic' in relation to its voltage-current characteristic.