Parallel Resistors (Grade 10 NSC Matric Physical Sciences): Flashcards

Multiple pathways for current flow

Splits across different branches

Same across all, equals battery voltage

Total resistance decreases

$\frac{1}{R_p} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3}...$

$R_p = \frac{R_1 \times R_2}{R_1 + R_2}$

4.77Ω

$V_{\text{battery}} = V_1 = V_2 = V_3...$

Increases

Combine two resistors at a time, replace with equivalent