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SESK: Stuff Everyone Should Know · sesk.info/ham-resistor-opposes-dc

What electrical component opposes the flow of current in a DC circuit?

Resistor.

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  1. Inductor
  2. Resistor ✔
  3. Inverter

Why: A resistor is designed to oppose current flow in a DC circuit. Its resistance is measured in ohms.

Huh, didn't know that: Resistors commonly turn some electrical energy into heat.

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What did the resistor say to the current? Not so fast!
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References

Answer: Resistor. A resistor is designed to oppose current flow in a DC circuit. Its resistance is measured in ohms.

  1. NCVEC 2026-2030 Technician Question Pool, T6A01 ncvec.org/downloads/2026-2030%20Technician%20Pool%20and%20Syllabus%20Public%20Release%20Feb%2019%202026.pdf
    B. Resistor
    Checked 2026-10-09.

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