Q. Explain what is the force felt by the electrons and the nuclei in the rod when the external field described in the problem introduction is applied? (Ignore internal fields in the rod for the moment.)
Q. How many turns of wire would be on a solenoid carrying a current 5.8 A if the solenoid is 13 cm in diameter, 201 cm long, and the field at the center is 2.1 × 10-3 T?