1. The problem statement, all variables and given/known data A sphere of radius R=10 cm made of insulating material has a uniform charge density p=100 C/m-3 a)Find the magnitude of the electrical field at a distance r<R, using Gauss' Law.What is the value of the electric field at r=5 cm? b)What is the total charge on this sphere? c)Find the magnitude of the electric field at a distance r>R using Gauss' Law.What is the value of the electrical field at r=10cm? At r=20 cm? e)Take the voltage at r=0 to be 0 Volts.Find the Voltage V(r) at any r by integrating the Electrical field E(r) along the radial direction. 2. Relevant equations Gauss' Law= [tex]\oint[/tex]E.ds=Qinside/E0 (permittivity constant) 3. The attempt at a solution I managed to do b) since the density is provided to us we only have to find the Q from d= Q/V, V is 4/3Pi R3.... but i certainly do need help with other questions.