An example of a non-ohmic resistor is:
Correct answer: A. Diode
- A. Diode
- B. Tungsten wire
- C. Carbon resistor
- D. Copper wire
Explanation
Diodes are examples of non-ohmic resistors because they do not have a constant resistance and their current-voltage relationship is nonlinear, meaning they do not adhere to Ohm's Law. The resistance changes depending on the voltage across them. On the other hand, tungsten wire, carbon resistors, and copper wire are all examples of ohmic materials. They maintain a constant resistance over a range of voltages and currents, thus complying with Ohm's Law.
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