RE: A student is experimenting with an electromagnet and an iron bar magnet. Which of the following statements about these magnets is true?
A. The electromagnet and the iron bar magnet are both temporary magnets.
B. The electromagnet and the iron bar magnet are both permanent magnets.
C. The electromagnet is a permanent magnet, and the iron bar magnet is a temporary magnet.
D. The electromagnet is a temporary magnet, and the iron bar magnet is a permanent magnet.
RE: A student is experimenting with an electromagnet and an iron bar magnet. Which of the following statements about these magnets is true? A. The electromagnet and the iron bar magnet are both temporary magnets. B. The electromagnet and the iron bar magnet are both permanent magnets. C. The electromagnet is a permanent magnet, and the iron bar magnet is a temporary magnet. D. The electromagnet is a temporary magnet, and the iron bar magnet is a permanent magnet.