The diagram shows a straight wire carrying current I to the right, placed in a magnetic field B pointing INTO the page. What is the direction of the magnetic force on the wire?
AUpward (out of the wire, toward top of page)
BDownward (toward bottom of page)
CSame direction as B (into page)
DSame direction as I (along the wire)
Explanation
📌 Right-hand rule for F = IL × B: fingers point right (direction of I), curl into the page (direction of B), thumb points UP. Force is upward. Distractor B: opposite; C: force is always perpendicular to B; D: force is always perpendicular to I.
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