What factors can cause a conductor to not follow Ohm's Law?

3 years ago

1 Reply

2310 views

Elenor Kutch

1 Answer

James H Verified Sherpa Tutor ✓

Enthusiastic physics and maths tutor with 31 years experience

89 reviews

If the temperature changes (often due to large current e.g filament lamp). In the statement of Ohm's Law, it says it applies only to a metal conductor at constant temperature. So a non-metal conductor-e.g. semiconductor, including diode, LED, thermistor, and an electrolyte don't obey Ohm's Law as a matter of course.

I'm available for 1:1 private online tuition!

Click here to view my profile and arrange a free introduction.

Think you can help?

Need an A-Level Physics tutor?

Get started with a free online introductions with an experienced and qualified online tutor on Sherpa.

Find an A-Level Physics Tutor