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Electronic components

Read circuit symbols for resistors, LEDs, switches, capacitors and motors, and work out the right resistor to protect an LED.

⏱ 20 min❓ 9 questions

What you'll be able to do

  • ✔I can identify common components by their circuit symbol
  • ✔I can explain what each component does in a circuit
  • ✔I can calculate a current-limiting resistor for an LED

How this works

  1. 1Read the short explanations first — they teach you what you need before each question.
  2. 2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
  3. 3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.

What's inside

9 questions and 1 quick teaching card, including:

  • 🔗Match the pairs — Choose the partner that goes with each item.
  • 🔢Number answer — Work out the answer and type the number.

👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.

Sign in and subscribe to unlock the full lesson and save your progress.

Curriculum: AC9TDE8K03