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A long straight wire is oriented perpendicular to the page. You hold an unusual compass near the wire as shown; the compass is unusual because one end is painted purple, and the
What happens when a magnetic compass is placed near a current carrying wire? - Quora
A compass is placed east of a wire. Draw two vector diagrams with a magnetic field felt by the compass (one with current and one without current). | Homework.Study.com
electromagnetism - How is the direction of a compass affected by a current in a wire? - Physics Stack Exchange
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