R₁ R R 4 Two concentric spheres are shown in Fig. 22.9. The inner sphere is a solid nonconductor and carries a charge of +5.00 μc uniformly distributed over its outer surface. The outer sphere is a conducting shell that carries a net charge of -8.00 μC. No other charges are present. The radii shown in the figure have the values R₁-10.0 cm, R2-20.0 cm, and Rs 30.0 cm. (a) Find the total excess charge on the inner and outer surfaces of the conducting sphere. (b) Find the magnitude and direction of the electric field at the following distances r from the center of the inner sphere: ()- 9.5 cm, (i) r-15.0 cm, (iii) r-27.0 cm, (iv) r-35.0 cm. OA) (a) -5.00 μC (inner surface), -3.00 μC (outer surface); (b) (i) 0; (ii) 2.00 10° N/C, radially outward; (iii) 0; (iv) 2.20×10 N/C, radially inward i x OB) M a) -3.00 μC (inner surface), -5.00 μC (outer surface); (b) (1) 0; (i) 2.00 10 N/C, radially outward; (II) 0; (iv) 2.20-10 N/C, radially inward a) 3.00 μC (inner surface), 5.00 μC (outer surface); (b) (0) 0; (ii) 220-10 N/C, radially M outward; (iii) 0; (iv) 2.00 10 N/C, radially inward Save