Determine the difference between permanent magnets and electromagnets.(1 point)
Responses
Electromagnets are made by using a power source.
Electromagnets are made by using a power source.
Permanent magnets have a north pole that attracts.
Permanent magnets have a north pole that attracts.
Electromagnets have a magnetic field around them.
Electromagnets have a magnetic field around them.
Permanent magnets are used to move heavy metals.
Permanent magnets are used to move heavy metals.
3 answers
The main difference between permanent magnets and electromagnets is that permanent magnets have a fixed magnetic field and do not require a power source to maintain their magnetism, while electromagnets are temporary magnets that require a power source (electric current) to generate a magnetic field.
which is the answer among my choices
The correct answer among your choices is: Electromagnets are made by using a power source.
3 answers