a bar magnet is a permanent magnet, while an electromagnet is a temporary magnet. why is an electromagnet…
a bar magnet is a permanent magnet, while an electromagnet is a temporary magnet. why is an electromagnet temporary?
Answer
Brief Explanations:
An electromagnet's magnetism depends on an electric - current flow. When the current is cut off, the magnetic field disappears, making it temporary.
Answer:
An electromagnet is temporary because its magnetic field is produced by an electric current. When the electric current is turned off, the magnetic field ceases to exist.