Circuit Basics from Zero: Circuit Knowledge Kids Can Understand

⚡ Circuit Basics from Zero — Electricity Kids Can Get

💧 Water-Flow Analogy for Circuits

Electric Concept	Water Analogy
Voltage (V)	Water pressure — the force pushing flow
Current (A)	Flow rate — water per unit time
Resistance (Ω)	Pipe width — how much it resists flow
Battery	Water pump — provides pressure
Switch	Valve — controls on/off

🔄 Ohm's Law

I = U / R (current = voltage ÷ resistance)

• Voltage fixed → larger resistance, smaller current (thinner pipe, less flow)
• Resistance fixed → larger voltage, larger current (higher pressure, faster flow)

🔗 Series vs Parallel

• Series: end-to-end, one path, same current everywhere, shared voltage (like holiday lights — one out, all out)
• Parallel: side-by-side, multiple paths, same voltage everywhere, split current (like home appliances — independent)