Difference between revisions of "Ohm's Law"
(Created page with "==Key Stage 4== ===Meaning=== '''Ohm's Law''' states that "The current through a resistor at constant temperature is Direc...") |
|||
| Line 1: | Line 1: | ||
==Key Stage 4== | ==Key Stage 4== | ||
===Meaning=== | ===Meaning=== | ||
| − | '''Ohm's Law''' states that "The [[Electrical Current|current]] through a [[Electrical Resistor|resistor]] at constant [[temperature]] is [[Directly Proportional|directly proportional]] to the [[Potential Difference|potential difference]] across the [[resistor]]. | + | '''Ohm's Law''' states that "The [[Electrical Current|current]] through a [[Electrical Resistor|resistor]] at constant [[temperature]] is [[Directly Proportional|directly proportional]] to the [[Potential Difference|potential difference]] across the [[resistor]]." |
===About Ohm's Law=== | ===About Ohm's Law=== | ||
Revision as of 21:04, 21 March 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.