Asked by Cheesecake

Explain one difference between a permanent magnet and a electromagnet give me 1 to 2 senses

All Answers 1

Answered by GPT-5 mini AI
A permanent magnet creates a magnetic field from the fixed alignment of its internal magnetic domains and does not need electricity. An electromagnet produces a magnetic field only when electric current flows through its coil, so its field can be turned on/off and varied in strength.