IIT JEE , AIEEE Forum - Physics , Electricity - a problem with potential.... again i want to be taught something

biki

i very well kno that charges are induced on the inner surface...

this is because when we consider a gaussian surface through the material of the hollow conductor enclosing a charge q say, we should get the total charge enclosed by the gaussain sphere = 0 as field is zero in the material of the conductor. So we take -q to be induced on the inner surface which makes field INSIDE THE MATERIAL of the hollow conductor= 0...

sister I M NOT ASKING THIS......... PLEASE READ IT CAREFULLY
especially 4rm the part where 1) 2) 3) points are written...

i m asking why the pot^n due to outer sphere at the surface of inner sphere(placed inside the outer sphere) be equal to pot^n at the surface of the outer sphere???
Here field inside (IN THE EMPTY SPACE) is not zero na ???

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