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What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

8 ohms.

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  1. 18 ohms
  2. 8 ohms ✔
  3. 13.5 ohms

Why: Use R = E divided by I. Twelve volts divided by 1.5 amperes equals 8 ohms.

Huh, didn't know that: An 8-ohm load at 12 volts uses 18 watts.

The dad joke
Why did 12 volts and 1.5 amps get along? They worked out an 8-ohm relationship.
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References

Answer: 8 ohms. Use R = E divided by I. Twelve volts divided by 1.5 amperes equals 8 ohms.

  1. NCVEC 2026-2030 Technician Question Pool, T5D05 ncvec.org/downloads/2026-2030%20Technician%20Pool%20and%20Syllabus%20Public%20Release%20Feb%2019%202026.pdf
    C. 8 ohms
    Checked 2026-10-09.

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