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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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.