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Grade 12 electrodynamics notes

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2025/2026 Written for academic year
Institution 12th Grade
Course Physical Sciences
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2024/07/18




The magnitude of the induced emf is directly
proportional to the rate of change of the
magnetic flux linkage.



Michael Faraday
1791 - 1867



1 2




Moving a wire through a magnetic field
induces an electrical current

−𝑁∆ɸ
𝜀=
∆𝑡




3 4




Energy conversion:
Mechanical Energy → Electrical energy
Alternating Current Direct Current
(AC) (DC)
• Induces an alternating • Induces a direct current
current • Contains a split ring
• Contains slip rings commutator




5 6

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March 24, 2026
Number of pages
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Written in
2025/2026
Type
Class notes
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Ms malatse
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All classes
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R133,33
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