b Q1 a The figure shows a metal spherical shell with inner radius a and outer radius b. At the center of the shell, there is a stationary positive charge, Q1 = +12Q. If the shell has a negative charge equal to -16Q, find the electrostatic field at a distance r > b from the center of the shell. O Q / (meor2), outward O 2Q / (TEor2), outward O Q / (2TEor2), outward O Q / (meor ), inward O 2Q / (TEor2), inward O 4Q / (TIEor2), outward O Q/ (2meor2), inward O 4Q / (TIEor2), inward