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Grade 12 IEB Physical Science (Physics) Electrodynamics (Section F) Summary & notes CA$5.58   Add to cart
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Grade 12 IEB Physical Science (Physics) Electrodynamics (Section F) Summary & notes

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  • Course
  • Physical Sciences
  • Institution
  • 12th Grade

This aesthetic, in-depth, neatly typed document summarises Section F of the IEB Grade 12 Physics syllabus: Electrodynamics. This document includes the full Section F syllabus, all definitions, additional class notes, own research notes and all relevant diagrams.

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Document information

  • January 16, 2023
  • 9
  • 2022/2023
  • Summary

Subjects

  • ieb
  • grade 12
  • matric
  • physical science
  • physics
  • section f
  • electrodynamics
  • definitions
  • diagrams
  • neatly typed
  • aesthetic
  • summary
  • notes

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  • 12th Grade
  • Physical Sciences
  • 200
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Electrodynamics:
Electromagnetism: Conventional direction of magnetic eld:




Current in electrodynamics = conventional current (ie. + to -) (NOT electron current)




• Magnetic e ect of electric current: A magnetic eld exists around a current-carrying conductor

• Right hand rule: Thumb points in direction of conventional current (+ to -) and ngers point in

direction of magnetic eld (lines)
+




Dot: Current Cross: Current
perpendicularly perpendicularly
out of page into page



• Magnetic eld around circular wire:

, • To determine magnetic poles of solenoid: Right Hand Solenoid Rule

Solenoid produces magnetic eld lines similar to bar magnet:




• Strength of electromagnetism:

- More turns on solenoid

- Bigger current

- Easily magnetised core (soft iron)



By placing current-carrying wire in magnetic eld, there is interaction between 2 magnetic elds




(current into page) (Current out of page)




Motor e ect: Current-carrying conductor experiences a force in a magnetic eld


F = I:l:Bsinµ
• F : Force (Newton, N)
• I : Current (Ampere, A)
• L : Length of conductor in B eld (metres, m)
• B : Magnetic ux density ( eld strength)
• µ : Angle between current and magnetic eld lines




fi

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