Open main menu

Difference between revisions of "Ohm's Law"

 
Line 12: Line 12:
  
 
:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Ohm's law, pages 46-7, 53, 58, 63, 76-7, GCSE Physics; Student Book, Collins, AQA '']
 
:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Ohm's law, pages 46-7, 53, 58, 63, 76-7, GCSE Physics; Student Book, Collins, AQA '']
 +
 +
====Edexcel====
 +
 +
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Ohm’s Law, page 223, GCSE Physics, CGP, Edexcel '']

Latest revision as of 10:47, 24 November 2019

Key Stage 4

Meaning

Ohm's Law states that "The current through a resistor at constant temperature is directly proportional to the potential difference across the resistor."

About Ohm's Law

Ohm's Law only applies to conductors at a constant temperature.
Ohm's Law only works at low current because current has a heating effect on a conductor.
An ideal resistor follows Ohm's Law.

References

AQA

Ohm's law, pages 46-7, 53, 58, 63, 76-7, GCSE Physics; Student Book, Collins, AQA

Edexcel

Ohm’s Law, page 223, GCSE Physics, CGP, Edexcel