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CAIE A-Level Physics A2 20.2 Force on a Current Carrying Conductor Questions

Practise explaining and calculating magnetic force on current-carrying wires and coils, using F = BIL sin theta and Fleming’s left-hand rule for direction.

Syllabus
2028–2030
Course
Physics 9702
Level
A2

Exam points

  • explain force on a current-carrying conductor and determine its direction
  • calculate F=BIL sin theta and define or calculate magnetic flux density
  • apply Fleming left-hand rule and interpret current, field and conductor geometry

Covered syllabus points

20.2.1—A force might act on a current-carrying conductor placed in a magnetic field20.2.2—The equation F = BIL sin θ, with directions as interpreted by Fleming’s20.2.3—Magnetic flux density as the force acting per unit current per unit length

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