Author Question: On the average, in a ferromagnetic domain permanent atomic magnetic moments are aligned ____ to one ... (Read 106 times)

BrownTown3 · **on:** Jul 28, 2018

On the average, in a ferromagnetic domain permanent atomic magnetic moments are aligned ____ to one another.
a. antiparallel
b. parallel
c. perpendicular
d. alternately parallel and antiparallel
e. randomly relative

Question 2

Two solenoids of equal length are each made of 2 000 turns of copper wire per meter. Solenoid I has a 5.00 cm radius; solenoid II a 10.0 cm radius. When equal currents are present in the two solenoids, the ratio of the magnitude of the magnetic field BI along the axis of solenoid I to the magnitude of the magnetic field BII along the axis of solenoid II, BI/BII, is
a. 1/4.
b. 1/2.
c. 1.
d. 2.
e. 4.