A conducting sphere is placed within a conducting spherical shell. The conductors are in electrostatic equilibrium. The inner sphere has a radius of 1.50 cm, the inner radius of the spherical shell is 2.25 cm, and the outer radius of the shell is 2.75 cm. If the inner sphere has a charge of 230 nC, and the spherical shell has zero net charge,

(a) What is the magnitude of the electric field at a point 1.75 cm from the center?
(b) What is the electric field at a point 2.50 cm from the center?
(c) What is the electric field at a point 3.00 cm from the center?

Transcribed Image Text:

Conducting sphere Conducting spherical shell 2.75 cm 1.50 cm 2.25 cm