V_{tpd}\) can also be calculated as \(I R\) where \(R\) is the load resistance. Voltage is a measure of energy, and energy is always conserved. So the EMF \(E\) of a cell is equal to the sum of ...

The total resistance for these resistors in series is 6 Ω + 2 Ω = 8 Ω. Looking for more teaching resources to support your lessons on KS3 physics? Head to the BBC Teach website for more free ...