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MMLU-Pro / 10017 / An automobile battery produces a potential difference (or "voltage") of 12 volts…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

An automobile battery produces a potential difference (or "voltage") of 12 volts between its terminals. (It really consists of six 2 volt batteries following one after the other.) A headlightbulb is to be connected directly across the terminals of the battery and dissipate 40 watts of joule heat. What current will it draw and what must its resistance be?

category

physics

options

  1. 3.0 amps, 4 ohms
  2. 2.8 amps, 3.2 ohms
  3. 3.75 amps, 3.2 ohms
  4. 4 amps, 3 ohms
  5. 3.33 amps, 3.6 ohms
  6. 5 amps, 2.4 ohms
  7. 4.5 amps, 2.67 ohms
  8. 2.2 amps, 5.45 ohms
  9. 2.5 amps, 4.8 ohms
  10. 3.5 amps, 4 ohms

src

stemez-Physics

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