lecture 04 F2011

# Lecture 04 F2011 - Lecture 4 Chapter 20 and 21 Page 4 DIPOLE Electric FIELD ON AXIS DIPOLE Electric FIELD ON BISECTING PLANE(BP E dipole p d E

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Lecture 4 Chapter 20 and 21 Page 1 GAUSS’S LAW   (point charge) Problem: See figure below: Find the flux through the closed surface. Conductors:   Defn:  A material that contains free electrons. E.g. copper I.  Take a neutral metal and apply an external field   E ext Q 1 Q 2 Q 3 Q 4

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Lecture 4 Chapter 20 and 21 Page 2 II  Take a neutral metal and charge it with excess electrons Field at a charged conducting  surface:   +       +        + +       +        +
Lecture 4 Chapter 20 and 21 Page 3 See Text Example 21.6,  Gauss’s Law:  An infinite nonconducting  sheet of uniform charge

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Unformatted text preview: Lecture 4 Chapter 20 and 21 Page 4 DIPOLE Electric FIELD ON AXIS DIPOLE Electric FIELD ON BISECTING PLANE (BP) E dipole p d E dipole p d +--+ Lecture 4 Chapter 20 and 21 Page 5 PROBLEM: DIPOLE FIELD a. Find BP E in the bisecting plane at a distance of 5 nm (x >> d ) directly and b. by using the fact that C N 10 1 1 nm 1 y at E 8 axis / . ) ( × = = . Water molecule dipole momentum: p = 6.2x10-30 Cm; d ~ 0.1 nm Lecture 4 Chapter 20 and 21 Page 6 MOTION OF DIPOLE IN UNIFORM External ELECTRIC FIELD ext E ext E...
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## This note was uploaded on 01/10/2012 for the course PHYS 2114 taught by Professor Bandy during the Spring '08 term at Oklahoma State.

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Lecture 04 F2011 - Lecture 4 Chapter 20 and 21 Page 4 DIPOLE Electric FIELD ON AXIS DIPOLE Electric FIELD ON BISECTING PLANE(BP E dipole p d E

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