Lecture4_SP10 - Topics to be covered in class: Review:...

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Unformatted text preview: Topics to be covered in class: Review: dipole in E-field Review: electric field flux Gauss Law Applications of the Gauss Law Independent reading: Conductors and Electric field (Ch.24.5) Convenient to introduce area vector A Velocity of flow perpendicular to the plane Velocity of flow makes angle with respect to the normal to the plane Same field line can contribute positively and negatively to the electric flux by intersecting the surface multiple times! Calculation of the flux through the closed surface Convention: normal always outwards! If there is no charge inside the volume surrounded by the Gaussian surface, each field line makes a negative contribution when entering and positive when exiting Gauss Law : = = Q A d E E r r Several types of closed surfaces to which Gauss Law is applied: (a) S1: encloses positive charge (positive flux) (b) S2: encloses negative charge (negative flux) (c) S3: does not enclose any charge (no net flux) (d) S4: encloses positive and negative charges (zero net charge zero net flux) A full Gaussian surface encloses two of the...
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This note was uploaded on 02/10/2011 for the course PHY 303L taught by Professor Turner during the Spring '08 term at University of Texas at Austin.

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Lecture4_SP10 - Topics to be covered in class: Review:...

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