A) A large non conducting sphere of radius 30 cm is uniformlycharged throughout with a net charge of -3μC. Calculatethe electric field at a point inside the sphere at a distance of 10cm from the center.
B) A conducting spherical shell of a radius 50 cm and athickness of 1 cm is placed concentrically around the originalsphere. The conducting sphere has a net charge of +2μC. What is the electric field at a position r=50.5 cm from thecenter of the spheres?
C) What is the charge per surface area on the inside of the conducting sphere?
D) What is the charge per surface area on the outside of the conducting sphere?
E) What is the electric field at a position r=60 cm from thecenter of the two spheres?