Answer to Question #17335 in Electricity and Magnetism for Ellen

Question

A long solenoid has a diameter of 12.0 cm. When a current i exists in its windings, a uniform magnetic field = 33.0 mT is produced in its interior. By decreasing i, the field is caused to decrease at the rate of 5.60 mT/s. Calculate the magnitude of the induced electric field at the following distances from the axis of the solenoid.
(a) 2.20 cm