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What type of electrical component consists of conductive surfaces separated by an insulator?

Capacitor.

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  1. Capacitor ✔
  2. Resistor
  3. Potentiometer

Why: A capacitor has two conductive surfaces separated by an insulating material called a dielectric. Charge collects on the conductive surfaces.

Huh, didn't know that: The dielectric prevents ordinary DC current from crossing between the plates.

The dad joke
Why do a capacitor's two plates never fight? There is always an insulator between them.
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References

Answer: Capacitor. A capacitor has two conductive surfaces separated by an insulating material called a dielectric. Charge collects on the conductive surfaces.

  1. NCVEC 2026-2030 Technician Question Pool, T6A05 ncvec.org/downloads/2026-2030%20Technician%20Pool%20and%20Syllabus%20Public%20Release%20Feb%2019%202026.pdf
    D. Capacitor
    Checked 2026-10-09.

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