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What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

1.5 amperes.

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  1. 1.5 amperes ✔
  2. 0.667 amperes
  3. 200 amperes

Why: Use I = E divided by R. One hundred twenty volts divided by 80 ohms equals 1.5 amperes.

Huh, didn't know that: At the same resistance, cutting the voltage in half cuts the current in half.

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What did 80 ohms say to 120 volts? Let's keep this current small, say 1.5 amps.
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References

Answer: 1.5 amperes. Use I = E divided by R. One hundred twenty volts divided by 80 ohms equals 1.5 amperes.

  1. NCVEC 2026-2030 Technician Question Pool, T5D07 ncvec.org/downloads/2026-2030%20Technician%20Pool%20and%20Syllabus%20Public%20Release%20Feb%2019%202026.pdf
    D. 1.5 amperes
    Checked 2026-10-09.

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Ham RadioWhat is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?Ham RadioWhat is the resistance of a circuit that draws 4 amperes from a 12-volt source?Ham RadioWhat is the current through a 100-ohm resistor connected across 200 volts?

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