A. super magnets
"Super magnets" is not a formally recognized category of magnets. The other options—temporary magnets, electromagnets, and permanent magnets—are well-defined types of magnets.
A. super magnets
B. temporary magnets
C. electromagnets
D. permanent magnets
1 answer
A. super magnets
"Super magnets" is not a formally recognized category of magnets. The other options—temporary magnets, electromagnets, and permanent magnets—are well-defined types of magnets.