A solenoid is formed by winding 29.0 m of insulated silver (resistivity 1.59 x 10(-8) Ωm) wire around a hollow cylinder. The turns are wound as closely as possible without overlapping, and
a) The magnetic field inside the solenoid is uniform
b) The magnetic field inside the solenoid is non-uniform
c) The magnitude of the magnetic field inside the solenoid depends on the radius of the cylinder
d) The magnitude of the magnetic field inside the solenoid depends on the number of turns of wire