IB skill practice

Analyse magnetic forces on charges and currents

Official-syllabus Physics skill catalogue entry. Seeded skills are activated only after exam-style question templates pass validation.

Paper 1, Paper 2 5 marks Difficulty 4

Current from magnetic force

In a second version of the same physics investigation, a wire in a hydrogen spectrum analysis experiences force \(0.08\,\text{N}\) in a \(0.4\,\text{T}\) magnetic field. The length in the field is \(0.6\,\text{m}\). Calculate the current. Use the diagram first, then calculate the requested value. Enter the numerical result and choose the interpretation that matches the physics meaning.

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