Class 7 NCERT • Curiosity Science Portal
Ch 03: Electricity: Circuits and Their Components
Select a topic or study module below to explore electric cells and batteries, incandescent bulbs vs LEDs, switches, standard circuit diagrams, conductors and insulators, NCERT solutions, and quizzes.
Topic 01 • Cells & Batteries
Inside a Torchlight, Electric Cell Terminals (+/–), Cell Holders & Making a Battery
Topic 02 • Incandescent Lamps & LEDs
Glowing Filaments, Fused Bulbs & Light Emitting Diodes (Longer + & Shorter – Leads)
Topic 03 • Circuits & Switches
Closed vs Open Circuits, Direction of Current (+ to –) & Homemade Safety-Pin Switch
Topic 04 • Circuit Diagrams
Standard Electrical Symbols (Cell, Battery, Bulb, LED, Switch) & Drawing Circuits
Topic 05 • Conductors & Insulators
Conduction Tester Activity, Copper Wires vs Plastic Coating & Electrical Safety
Module 06 • Solutions & HOTS