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⚡ Electricity

Spec 4.2 Paper 1 📙 Higher

📋 Subtopics — click any to open full notes

Standard Circuit Diagram Symbols Spec 6.2.1.1 +

Electrical Charge and Current Spec 6.2.1.2 +

Current, Resistance and Potential Difference Spec 6.2.1.3 +

Resistors Spec 6.2.1.4 +

Series and Parallel Circuits Spec 6.2.2 +

Direct and Alternating Potential Difference Spec 6.2.3.1 +

Mains Electricity Spec 6.2.3.2 +

Power Spec 6.2.4.1 +

Energy Transfers in Everyday Appliances Spec 6.2.4.2 +

The National Grid Spec 6.2.4.3 +

Static Charge Spec 6.2.5 (physics only) +

Electric Fields Spec 6.2.6 (physics only) +

💡 Click a subtopic title or the + button to open the full notes, quiz and examples.

📐 Key Equations

Q = It

V = IR

P = VI

P = I²R

E = Pt

E = QV

⭐ Higher Tier Content

Potential divider circuits

Vout = Vin × R2/(R1+R2)

🔬 Triple Science Extensions

Static electricity

Electric fields

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