An isolated conducting spherical shell carries a positive charge. Which statemen

Question

An isolated conducting spherical shell carries a positive charge.

Which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct?

-Electric potential inside and outside the shell is constant, but not zero

-Electric field inside and outside the shell is zero

-Electric potential inside the shell is constant and outside the shell is equal to zero -Electric field inside is equal to zero and outside the shell is changing as 1/r2 -Electric field inside and outside the shell is constant (does not change with the position r), but is not equal to zero -Electric field inside is constant and outside the shell is changing as 1/r -Electric potential inside the shell is constant and outside the shell is changing as 1/r2 -Electric field inside and outside the shell is changing as 1/r (where r is the distance from the center of the sphere) -Electric potential inside the shell is constant and outside the shell is changing as 1/r -Electric field inside and outside the shell is changing as 1/r2 -Both the electric potential and the electric field does change with r inside and outside the spherical shell -Electric field inside is equal to zero and outside the shell is constant, but not zero

Explanation / Answer

Correct statements are

-Electric field inside is equal to zero and outside the shell is changing as 1/r2

-Electric potential inside the shell is constant and outside the shell is changing as 1/r

Explanation:-

Electric field variation-- E=0 for inside spherical shell

  E= KQ/r2 for outside spherical shell

Electric Potential variation-- V= constant for inside spherical shell

V= KQ/r for outside spherical shell

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