5.87. Electromagnet http://www.ck12.org
- When the amplitude of the alternating current is greater, the strength of the magnetic field is __.
- The more quickly the alternating current changes direction, the more quickly the magnetic field __.
Review
- What is an electromagnet?
- How could you increase the strength of an electromagnet?
- Why are electromagnets the strongest of all magnets?
- How could the crane operator in the opening photo cause the electromagnet to drop the metal parts into the
train car?