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IB Physics HL D 4 1 Hl Magnetic Flux Questions

Define magnetic flux and flux linkage, then calculate how field strength, area, orientation and changing magnetic fields affect a coil.

Syllabus
First assessment 2025
Course
Physics HL
Level
HL

Exam points

  • define magnetic flux as the component of magnetic flux density normal to a surface multiplied by area and calculate flux linkage for a coil
  • calculate minimum and maximum magnetic flux or flux linkage from field, area, coil turns and orientation
  • interpret how changing magnetic field strength, magnet position or coil orientation changes magnetic flux through a loop

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Study D.4.1 (HL)—Magnetic flux conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Physics HL D 4 1 Hl Magnetic Flux Questions question 1

[Maximum number: 1]

A coil is rotating in a region of magnetic field with angular speed 12.56rads−112.56 \mathrm{rad} \mathrm{s}^{-1}. At t=0, the field is parallel to the surface of the coil.

Figure for Question IB Physics HL D 4 1 Hl Magnetic Flux Questions question 1 — IB Physics HL

State the magnetic flux linkage through the coil at t=0.

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