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Q:derive expression for capacitance of spherical conducter

Ans: proof:consider a spherical conducter of radius 'R' which has been kept in air .
let's us consider a +Q charge given to it
this is distributed uniform 'c' overits upper surface net


v= 1/4πE0.Q/r
c= Q/R
c=Q/ 1/4πE0.Q/R
c= (4πE0) R
c proportional R


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