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QUIZQuiz · #20EP.219 · 24 s

Quiz #20: which metal is in almost every wire? → C, copper

Cover of the lesson: Quiz #20: which metal is in almost every wire? → C, copperComing to YouTube soon
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// WHAT YOU WILL LEARN

Copper: it conducts very well (only silver is better) and costs far less; big power lines often use aluminium because it is lighter.

// LESSON NOTES

Quiz! Which metal is in almost every wire? 🪙⚡
A) Gold B) Iron C) Copper D) Silver

✅ C — COPPER! It carries current really well and bends easily.
🥈 Only silver is a little better… but it costs way more.
🥇 Gold? Just a thin coat on plugs and connectors, so they never rust.
🗼 Big overhead power lines use light aluminium — about half the weight for the same job.

Did you get it right? Comment your answer!
Next quiz: which one is the LED symbol?
Free lessons on learn.pablochtech.com

Read the voiceover (transcript)
  1. Quiz! Which metal is in almost every wire?
  2. A, gold. B, iron. C, copper. D, silver.
  3. Lock it in!
  4. C! Copper. It carries current really well.
  5. Only silver is better, but it costs way more!
  6. Gold? Just a thin coat on plugs.
  7. Big power lines use light aluminium!
  8. Next: which one is the LED symbol? Comment your answer!

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