Physics A-Level
Circuit equations and algebraic rearrangement
What Circuit equations and algebraic rearrangement means in Physics A-Level, as defined for OCR.
Definition of Circuit equations and algebraic rearrangement
Check what you remember
Read the wording for your board, then hide it and explain Circuit equations and algebraic rearrangement in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Substituting V = IR into E = I(R + r) gives E = V + Ir, and rearranging gives r = (E − V)/I.
Topics that use Circuit equations and algebraic rearrangement
- Internal resistance (OCR A-Level)
Related terms
- Electromotive force and internal resistance
- Energy transfer per unit charge in a source
- Lost volts
- Terminal potential difference
- Terminal potential difference and lost volts
- Electromotive force
- Internal resistance
Using Circuit equations and algebraic rearrangement in the exam
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