A cylindrical shell of radius 7.00 cm and length 260 cm has its charge uniformly distributed on itscurved surface. The magnitude of the electric field at a point20.0 cm radially outward from its axis(measured from the midpoint of the shell) is 36.0 kN/C.
(a) Use approximate relationships to find thenet charge on the shell.
(b) Use approximate relationships to find theelectric field at a point 4.00 cm from theaxis,
measured radiallyoutward from the midpoint of the shell.