A solenoid is near a piece of iron, as shown in Figure P24.43. When a current is present in the solenoid, a magnetic field is created. This magnetic field will magnetize the iron, and there will be a net force between the solenoid and the iron.

a. Make a sketch showing the direction of the magnetic field from the solenoid. On your sketch, label the induced north magnetic pole and the induced south magnetic pole in the iron.

b. Will the force on the iron be attractive or repulsive?

c. Suppose this force moves the iron. Which way will the iron move?

Transcribed Image Text:

FIGURE P24.43 Current in solenoid is clockwise as viewed from the right end. Piece of iron is lined up with the axis of the solenoid.