Questions
A solid metallic sphere has a charge +3Q . Concentric with this sphere is a conducting spherical shell having charge -Q . The radius of the sphere is a and that of the spherical shell is b (b>a). What is the electric field at a distance R (a<R<b) from the centre.
detailed solution
Correct option is C
Electric field at a distance R is only due to sphere because electric field due to shell inside it is always zero. Hence electric fieldTalk to our academic expert!
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