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Summary Grade 12 IEB Physical Sciences - Electric Fields (Physics Section D) $2.83   Add to cart

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Summary Grade 12 IEB Physical Sciences - Electric Fields (Physics Section D)

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Covers the various sections relating to Electric Fields. Includes notes from the textbook, as well as additional class, video and research information, diagrams and practice questions. Applicable to all IEB Grade 12s. Written by a 95% < student.

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  • December 14, 2020
  • 4
  • 2020/2021
  • Summary
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By: gerritcleroux • 3 year ago

Spelling and unwilling to fix it before final exams in November to where I do not need the notes for afterwards.

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Electric fields
= a region in space where an electric charge experiences a force

The direction of the electric field at a point is the direction that a positive test charge would
move if placed at that point.

Electric field strength
Symbol: E (vector quantity)
(the magnitude of the electric field at a point)



Force acting per unit positive charge at that point
𝐹 𝑘.𝑄
E= or E=
𝑞 𝑟2

Big Q is the first point charge
Small q comes second

E = electric field strength (N.C-1)
F = force (N)
q = charge (C)

Away from positive
Towards the negative

Gravitational field Electric field
Fg = m x g F=qxE

𝐹𝑔 𝐹
g= E=
𝑚 𝑞


Symbol: N.kg-1 Symbol: N.C-1

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