IDNLearn.com is your go-to resource for finding expert answers and community support. Ask your questions and receive prompt, detailed answers from our experienced and knowledgeable community members.

A thin, metallic, spherical shell of radius a = 7.0 cm has a charge qa = 9.00×10-6 C. Concentric with it is another thin, metallic, spherical shell of radius b = 16.80 cm and charge qb = 4.00×10-6 C. Find the electric field at radial points r where r = 11.9 cm