QUIZQuiz · #15EP.179 · 24 s

Quiz #15: What does mAh on a battery mean? → B, how much charge it holds

// WHAT YOU WILL LEARN

Milliamp-hours = how much charge it holds: 1,000 mAh can give 1,000 mA (1 A) for 1 hour, or 100 mA for 10 hours; for energy, multiply by the volts (Wh).

// LESSON NOTES

What does mAh on a battery mean? 🔋 A, B, C or D? Comment before you watch the answer! 👇

✅ B — how much charge it holds. mAh = milliamp-hours.
⏱️ 1,000 mAh can give 1 A for 1 hour… or 100 mA for 10 hours.
⚡ Want the energy? Multiply by the volts: 5,000 mAh × 3.85 V ≈ 19 Wh (watt-hours).
❌ It's not the charging speed, the voltage or the heat.

Next quiz: zig-zag or box — which one is the resistor symbol? Comment your answer!
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Read the voiceover (transcript)
  1. Five thousand m A h. What does it mean?
  2. A, charging speed. B, how much it holds. C, voltage. D, heat.
  3. Lock it in!
  4. B! Milliamp-hours: how much charge it holds.
  5. One thousand m A h: one amp for one hour,
  6. or a hundred milliamps for ten hours!
  7. Times the volts gives watt-hours!
  8. Next: which one is the resistor symbol? Comment your answer!

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