36. Electric Field of Charged Disk

36. Electric Field of Charged Disk - Electric Field of...

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Unformatted text preview: Electric Field of Charged Disk Q Charge per unit area: = R2 Area of ring: dA = 2ada Charge on ring: dq = 2ada da R a x kxdq 2kxada = 2 (x2 + a2 )3/2 (x + a2 )3/2 R Z R -1 ada = 2kx Ex = 2kx 2 + a2 )3/2 x2 + a2 0 0 (x x Ex = 2k 1 - for x > 0 2 + R2 x x R : Ex 2k dEx = Infinite sheet of charge produces uniform electric field perpendicular to plane. 15/1/2008 [tsl36 1/1 ...
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This note was uploaded on 04/30/2008 for the course PHYS 204 taught by Professor Andrevantonder during the Spring '07 term at Rhode Island.

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