Why do charging cables not spark when held close to the intended device?

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close as in almost touching but not inserted.

In: Engineering

7 Answers

Anonymous 0 Comments

The charging cable doesn’t have enough voltage to jump the air gap to create an arc. This makes low voltage electronics pretty safe to use.

USB for instance is 5 volts, while outlet power is 120 volts (or 220v depending where you are)

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