Ohm's Law and Circuit Basics, Simplified
Every circuit, from a torch to a phone, follows a few simple rules. Learn them once with the water-pipe picture and the rest of electronics gets much easier.
Words to know
- Voltage
- Think of it like water pressure in a pipe.
- Current
- Think of it like how much water flows through a pipe each second.
- Ohm's law
- Think of it like pressure, flow and pipe width.
- Power
- Think of it like how much work the water wheel does each second.
- Voltage divider
- Think of it like a waterfall in two steps.
- Series circuit
- Think of it like one single path through a row of rooms.
- Parallel circuit
- Think of it like several checkout lanes in a shop.
- Short circuit
- Think of it like a burst pipe.
Free calculators
Lessons (8)
Basic Safety for Young Engineers: how to work with electricity safely
How to Connect a Basic Circuit for Kids
Understanding Resistors in Series and Parallel
What is a Battery? Polarity, voltage and how to test one
What is a Resistor? Basic Electronic Components
What is AC and DC? Is it harmful?
What is current? Voltage, resistance and current with water pipes- Kirchhoff's Laws Explained Simply: KCL and KVL

