Question

Anyone here to help me:S

ten dipoles, each consisting of two charges +- 19 uC, are located within a spherical surface, the radius of which is 2 mm. What is the flux density through the sphere

i got 4.1*10^6 N-m^2/C ???????????

Answer 1

flux is zero man!!!

Answer 2

since there are dipoles inside......net charge inside is zero!
apply gauss law......flux is zero!

Answer 3

getting?

Answer 4

no:S

Answer 5

ok....do u know gauss law for electrostatics?

Answer 6

yes

Answer 7

gauss law states that net flux through a closed surface is NET CHARGE ENCLOSED by that closed surface...divided by epsilon nought......isnt it right?

Answer 8

so...u have dipoles here.....dipole means 2 charges , 1+ve,1-ve....so net charge of a dipole is zero......so even if u have 100 dipoles..net charge wud be zerro...so since there are only dipoles inside ur closed surface....net charge is zero..

Answer 9

since net charge enclosed by the closed surface is zero.....flux is zero by the gauss law....get it??????

Answer 10

yes thanks

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