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A point charge + 5.0 ?C is at the center of an electrically neutral spherical shell...

A point charge + 5.0 ?C is at the center of an electrically neutral spherical shell with a radius of 12.0 cm. (i) What

is the total electric flux about the sphere shell? (ii) What is the magnitude of the electric field at a distance 0.30 m from

the center?

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Homework Answers

Answer #1

Gauss' Law; The flux thru a closed surface is proportional to the net charge enclosed by the surface

according to gauss



(a)

?E through any closed

surface is equal to the

net charge enclosed,

Qencl, div. by ?0

flux does not depend on radius

?0=8.85*10^-12 F/m

so flux = 5uC/ ?0

== 5.65* 10^5 Vm

(b)


there will be no electric field at any distance due to the point charge because
the charge will be generated on the sphere which inturn neutralise the electrical field of the point charge

but if the point charge is not at the centre (uniform distribution)
then there might be som electric field due to the point charge ...

:)


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