What does a capacitive scanner use to form an image?

Capacitors and electric current.

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Why: Capacitive scanners use capacitors and electric current to form an image.

Huh, didn't know that: Capacitive scanners use capacitors and electric current to form an image.

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References

Answer: Capacitors and electric current. Capacitive scanners use capacitors and electric current to form an image.

  1. Fingerprint en.wikipedia.org/wiki/Fingerprint
    Capacitive or CMOS scanners use capacitors and thus electric current to form an image of the fingerprint.
    Checked 2026-11-07.

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