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 (bgta). What is the electric field at a distance R (a ltRltb) from the centre.

A solid metallic sphere has a charge + 3Q. Concentric with this sphere

1.	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 (bgta). What is the electric field at a distance R (a ltRltb) from the centre.
Answer» `Q/(2PI epsilonR)` `(3Q)/(2 pi epsilon_0 R)` `(3Q)/(4pi epsilon_0 R^2)` `(4Q)/(2pi epsilon_0 R^2)` ANSWER :C

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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 (bgta). What is the electric field at a distance R (a ltRltb) from the centre.

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