What is the difference between ohmic and non-ohmic devices?

Date:2023-01-12
Ohmic devices are those whose current-voltage relationship is linear and proportional, meaning that the current through them is directly proportional to the voltage applied. Examples of ohmic devices include resistors, diodes, and ordinary electrical wires. Non-ohmic devices have a non-linear current-voltage relationship, meaning that the current through them is not directly proportional to the voltage applied. Examples of non-ohmic devices include transistors, vacuum tubes, and thermistors.
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