aU1 01 JeIONodojd SI aPuns na net charge enclosed. 1.1 Electric Flux Definition Electric flux o quantifies the notion "number of field lines crossing a surface." It is a measure of the E field perpendicular to a surface: it depends on the field strength E, the surface area A, and the angle between the field and the normal to the surface. $ = EA cos 0 = Ē.A Units: N.m2/C Example: Consider a disk with radius 0.10 m in a uniform E field with magnitude 2.0x10 N/C. The clectric field makes an angle of 30° with the normal to the disk. What is the electric flux through the disk? What is the flux through the disk if it is turned so that its normal is perpendicular to E? parallel to E? MacBook Air F8 F9 F10 F6 F7 F4 F5 F3 F2 & 23 2$ 8 3 4 5 E н

University Physics Volume 2
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ISBN:9781938168161
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Chapter5: Electric Charges And Fields
Section: Chapter Questions
Problem 67P: Consider an electron that is 1010 m from an alpha particle (q=3.21019C) . (a) What is the electric...
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Lecture 3 example electric flux 

aU1 01 JeIONodojd SI aPuns na
net charge enclosed.
1.1 Electric Flux Definition
Electric flux o quantifies the notion "number of field lines crossing a surface." It is a measure of
the E field perpendicular to a surface: it depends on the field strength E, the surface area A, and
the angle between the field and the normal to the surface.
$ = EA cos 0 = Ē.A
Units: N.m2/C
Example: Consider a disk with radius 0.10 m in a uniform E field with magnitude 2.0x10 N/C. The
clectric field makes an angle of 30° with the normal to the disk. What is the electric flux through
the disk? What is the flux through the disk if it is turned so that its normal is perpendicular to
E? parallel to E?
MacBook Air
F8
F9
F10
F6
F7
F4
F5
F3
F2
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Transcribed Image Text:aU1 01 JeIONodojd SI aPuns na net charge enclosed. 1.1 Electric Flux Definition Electric flux o quantifies the notion "number of field lines crossing a surface." It is a measure of the E field perpendicular to a surface: it depends on the field strength E, the surface area A, and the angle between the field and the normal to the surface. $ = EA cos 0 = Ē.A Units: N.m2/C Example: Consider a disk with radius 0.10 m in a uniform E field with magnitude 2.0x10 N/C. The clectric field makes an angle of 30° with the normal to the disk. What is the electric flux through the disk? What is the flux through the disk if it is turned so that its normal is perpendicular to E? parallel to E? MacBook Air F8 F9 F10 F6 F7 F4 F5 F3 F2 & 23 2$ 8 3 4 5 E н
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