Can you get me on tracks with this assignment? 1. Find out and show in graphs electric induction D(r) and electric field E(r) if the field is created by a charge q, which is even in a hollow dielectric sphere. R1=2 cm, R1=5 cm, εa=2ε0 So i have a sphere which outter shell is made from dielectric, so i need to calculate eletctric induction only in dielectric sphere? This sphere R would be like R=R1-R2. and how to find electric field? Tha main problem is how to calculate with the hole in the dielectric sphere, does it make any differeces?