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ARC-Challenge / Mercury_7212678 / A bar magnet was moved quickly back and forth in a coil of copper wire. The ends…

Problem

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question

A bar magnet was moved quickly back and forth in a coil of copper wire. The ends of the wire were connected to a small lightbulb. Which of the following was the device created for?

choices

to generate an electric current
to increase the strength of the magnet
to heat the copper wire
to transfer protons to the lightbulb

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Source and history

upstream_id / Original problem ID: Mercury_7212678
task_id: 1f860d6c-8ddf-5c46-be27-d42fc9111f44
task_key: ARC~2dChallenge--test--Mercury~5f7212678
task_revision_id: 2
config / split: ARC-Challenge / test

Official source

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