Electrical principles — Ohm's law, circuits
T-Level: Engineering and Manufacturing: Electrical principles — Ohm's law, circuits
What you'll learn
- 1
Ohm's Law is like a water pipe: Voltage pushes the current, resistance slows it down.
- 2
In the water pipe analogy, what does 'voltage' represent?
- 3
Build a circuit with 6V battery and 3Ω resistor — the ammeter shows the current.
- 4
Let's use Ohm's Law: A 12V battery pushes current through a 4Ω resistor. What is the current?
- 5
A 9V battery has a 3Ω resistor. What is the current?
- 6
Now find the resistance: A 24V supply gives 4A of current. What is the resistance?
- 7
A 12V battery gives 2A of current. What is the resistance?
- 8
If you increase the resistance in a circuit but keep voltage the same, what happens to current?
Practise Electrical principles — Ohm's law, circuits with Whizlo
Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 16–18. Aligned to the UK National Curriculum.