Distinguish between ohmic and non ohmic substances?
Question: Distinguish between ohmic and non ohmic substances?
Ohmic substances are materials that follow Ohm's law, which states that the current flowing through a material is directly proportional to the voltage applied across it. In other words, the resistance of an ohmic substance remains constant regardless of the magnitude of the current flowing through it. Non-ohmic substances, on the other hand, do not follow Ohm's law and their resistance changes with the magnitude of the current. Non-ohmic substances may exhibit nonlinear behavior, such as semiconductors, diodes, and transistors.
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