Resistors
Physics: AQA GCSE Higher, topic 2.3.2
Resistors in Series
In series circuits, the resistors all oppose the flow of electric current through the circuit. Their total resistance is calculated by adding up the resistance of each individual resistor: R = R1 + R2 + R3 +....
Water pipes
- If you take a single pipe with water (like electric current) flowing through it and put a rock into it, the rock blocks the flow of water (like a resistor).
- Adding more rocks next to each other in the pipe makes it harder to push water through.
Test yourself on Resistors
A resistor...
If three resistors in a circuit have a total resistance of 15 Ohms, which is a possible set of resistances?
What is resistance measured in?