Core practical: Electrical circuits (Edexcel GCSE Physics Combined Science): Flashcards

In series

In parallel

$R = \frac{V}{I}$

Ohms, $\Omega$

Volts, V

Amperes, A

$R_{\text{total}} = R_1 + R_2$

20$\Omega$

Less than the resistance of either resistor

$\frac{1}{R_{\text{total}}} = \frac{1}{R_1} + \frac{1}{R_2}$

5$\Omega$

Only one path for electrons to flow

Current has more than one path to flow through