A solid, spherical insulator has radius r, and charge Q, = -3Q. Concentric with this sphere is an insulating spherical shell and with net charge Q, = 6Q. Also concentric with those two objects is a and with net charge Q. = -2Q. All charges and outer radius rbouter rbinner with inner radius solid conducting spherical shell with inner radius Cinner and outer radius rCouter are distributed uniformly throughout the insulators. 1) What is the magnitude of the electric field at a radius r, (the point shown in the diagram, outside the conducting shell)? 11Q r 1 O E = 1 O E = 20 4T. r 10 r 1 O E = 3Q r 1 E = 1 O E = 5Q 2) What is the magnitude of the electric field at a radius r, (the point shown in the diagram, inside the conducting shell but outside the insulating shell and sphere)? Remember: Q, = -3Q, Qb = 6Q and Q. = -2Q. %3D 1 E = 5Q 4 30 4T0 r 1 E = 10 4r. r 1 E = 11Q 4ro r. 1 E = 20 4ro r 1 O E %3D 3) What is the magnitude of the electric field at a radius r3 = ra (the point shown in the diagram, inside the insulating sphere)? Remember: Q, = -3Q, Q, = 6Q and Q, = -2Q. 1 27 3Q 4, 64 r? O E = 1 9 30 O E = 4 16 ? 1 3 3Q 4 4 r O E = 3Q 1 4t, r? O E = E = 1 1Q = -3Q, Qb = 6Q and Qc = -2Q. 4) What is the net charge on the inner surface of the conducting shell? Remember: Q, Oa -3Q -2Q 1Q O -6Q O 2Q O00 O O 5) What is the net charge on the outer surface of the conducting shell? Remember: Q, = -3Q, Qh = 6Q and Q, = -2Q. Qa 2Q 1Q -2Q -6Q -3Q O00 0 O