A point charge - 2.13 pC is placed at the center of a spherical conducting shell of inner radius R1 = 3.50 cm and outer radius R2 = 4.00 cm. The electric field just above the surface of the conductor is directed radially outward and has magnitude 8.51 N/C. What is the charge on the inner surface of the conductor in pC? Enter the value without the units and with two (2) decimal places. Hint: Make sure you first draw a picture. You are given the direction and value of the electric field at r = R2. 1 pC= 1x10-12 C.

A point charge - 2.13 pC is placed at the center of a spherical conducting shell of inner radius R1 = 3.50 cm and outer radius R2 = 4.00 cm. The electric field just above the surface of the conductor is directed radially outward and has magnitude 8.51 N/C. What is the charge on the inner surface of the conductor in pC? Enter the value without the units and with two (2) decimal places. Hint: Make sure you first draw a picture. You are given the direction and value of the electric field at r = R2. 1 pC= 1x10-12 C.