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A conducting sphere of radius R and a concentric thick spherical shell ofinner radius 2R and outer radius 3R is shown in figure. A charge +10Q isgiven to the shell and inner sphere is earthed. Then charge on inner sphere is A. -4QB. -10QC. 0D. None Plz solve it

Mantra , 5 Years ago
Grade 11
anser 1 Answers
Vikas TU

Last Activity: 5 Years ago

Hiii Mantra 
Take gausian surface in the region of grunded sphere and the shell .
Take close integral of E.ds = q/epselon
E=0 
so q will come exactly opposite to 10Q
so ans would be -10Q.
Hope this helps.

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