Physics GCSE
Resistance and Ohm's law
What Resistance and Ohm's law means in Physics GCSE, as defined for OCR.
Definition of Resistance and Ohm's law
Check what you remember
Read the wording for your board, then hide it and explain Resistance and Ohm's law in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The relation V = I × R links potential difference, current and resistance.
Topics that use Resistance and Ohm's law
- Simple circuits (OCR GCSE)
Related terms
- Cell polarity conventions
- constant resistance
- Current
- diode
- E = P t
- Energy transferred
- Equivalent resistance in series
- Explaining mechanisms
Using Resistance and Ohm's law in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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