what are the limitations of ohms law ?

Asked by  | 24th Sep, 2009, 10:54: PM

Expert Answer:

Limitations of Ohm's law,

1/ V = IR where R, resistance is constant, but that's not true always. It depends upon tempreature. Tempreature increase results in  increased the resistance.

2/ It can't be applied to all the materials. For example semiconductors, gases such as air.

3/ It can't be applied to electrical components that show negative resistance such as high vacuum electron tubes and tunnel diodes.

Regards,

Team,

TopperLearning.

Answered by  | 25th Sep, 2009, 10:00: PM

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