9702 · 10.2
Kirchhoff's laws
Welcome to the powerful world of **Kirchhoff's Laws**! These fundamental principles are essential for anyone wanting to accurately analyse how electricity behaves in circuits, especially those too complex for simple series and parallel rules. You'll discover how the **conservation of charge** and **conservation of energy** govern current flow and voltage drops in every electrical path. This pilot aligns with **Senpai Corner** AS notes (2025–2027) for topic **10.2**.
Need to know
What you need to know
- Based on the principle of conservation of charge.
- A 'junction' is any point where three or more conductors meet.
- An alternative form is ΣI = 0, where currents entering are positive and currents leaving are negative.
- Always label your assumed current directions on a diagram before starting your calculation.
Explanation
Kirchhoff's laws
- Based on the principle of conservation of charge.
- A 'junction' is any point where three or more conductors meet.
- An alternative form is ΣI = 0, where currents entering are positive and currents leaving are negative.
- Always label your assumed current directions on a diagram before starting your calculation.