Two solenoids are used to produce a magnetic field across a cathode-ray tube (Figure 28.39 pg 920). Each coil has N=6000 turns, is L=0.09m long, has radius r=0.06m, and carries current I=1.2A. The CRT is d=0.07m in diameter.
(a) Find the field at the center of the CRT.
Bcenter = __ T
(b) Find the field at a point on the edge of the CRT along the central aixs of the solenoids.
Bedge = __ T