State Ohm's Law and its limitations.
Understand the Problem
The question is asking for a statement of Ohm's Law along with its limitations. This involves defining the law, which relates voltage, current, and resistance, and discussing conditions under which it may not apply, such as non-linear components or varying temperature effects.
Answer
Ohm's Law relates current with voltage in conductors but doesn't apply to non-linear, non-metallic, unilateral conductors, or with temperature changes.
Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Limitations include non-applicability to non-linear and unilateral circuits, non-metallic conductors, and when physical conditions like temperature change. Non-ohmic devices do not follow Ohm's Law.
Answer for screen readers
Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Limitations include non-applicability to non-linear and unilateral circuits, non-metallic conductors, and when physical conditions like temperature change. Non-ohmic devices do not follow Ohm's Law.
More Information
Ohm's Law is fundamental in understanding electrical circuits, but most electronic components don't exactly follow it due to their non-linear properties. This makes it crucial to choose the right components and materials for circuit design.
Tips
A common mistake is assuming Ohm's Law applies universally to all electrical components which is not true, particularly for non-linear devices like diodes or transistors.
