Physics (AS & A Level) · Oct / Nov 2024 · Paper 11 · Question 31

Kirchhoff's second law is a consequence of a basic principle. What is this principle?

1. AThe charge flowing in an electric circuit is conserved.
2. BThe energy in an electric circuit is conserved.
3. CThe sum of the electric currents entering a point in an electric circuit is equal to the sum of the electric currents leaving that point.
4. DThe sum of the potential differences in an electric circuit is equal to the sum of the products of the current and resistance.

As printed in the paper