Physics (AS & A Level) · Oct / Nov 2023 · Paper 13 · Question 35

Three resistors, R₁, R₂ and R₃, are connected in parallel to a cell. The currents in the resistors are I₁, I₂ and I₃. The potential differences across the resistors are V₁, V₂ and V₃. The current in the cell is I₀. The potential difference across the cell is V₀, as shown. Which equation can be obtained by applying Kirchhoff's second law to the circuit?

1. AI₀ = I₁ = I₂ = I₃
2. BI₀ = I₁ + I₂ + I₃
3. CV₀ = V₁ = V₂ = V₃
4. DV₀ = V₁ + V₂ + V₃

As printed in the paper