lecture_03_F2011

lecture_03_F2011 - Lecture 3 Chapter 20 and 21 Page 1...

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Unformatted text preview: Lecture 3 Chapter 20 and 21 Page 1 Continuous Charge Distributions: The electric field due to a uniformly charged rod (line charge density λ ): Problem Text: 20-30 The electric field 22 cm from a long wire carrying a uniform line charge density is 1.9 kN/C . What will be the file strength 38 cm from the wire? Lecture 3 Chapter 20 and 21 Page 2 Lecture 3 Chapter 20 and 21 Page 3 Electric Field on axis due to a ring of uniform charge Q Problem : Find the magnitude of the electric field due to a charged ring of radius a = 10 cm and a total charge Q = 6.2 nC , at a point on the ring axis a distance x = 10 cm from the ring’s center. Lecture 3 Chapter 20 and 21 Page 4 Electric Field on axis due to a disk of uniform charge Q Lecture 3 Chapter 20 and 21 Page 5 Electric Flux (UNIFORM AND NONUNIFORM) Uniform Field: E : Parallel to Unit Vector n A A ˆ = E : Perpendicular to n A A ˆ = E : At an angle θ to n A A ˆ = Nonuniform Field:...
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lecture_03_F2011 - Lecture 3 Chapter 20 and 21 Page 1...

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