Electricity and Circuits

Electrons running laps — that's what lights up your room. ⚡

📖 Concepts

1Electric current & circuits→2Circuit diagrams (symbols)→3Cell and battery→4Open vs closed circuit→5Conductors and insulators→6How a bulb works→7Electric safety→8Series and parallel circuits→9Electromagnets and their uses→

🎯 Practice questions

The tier ladder: 🌱basic warms you up, ⚡regular is exam-paced, 🔥hard twists the same ideas. The 🏆olympiad tier matches the “Achievers” section of the real exam.