The image shows the magnetic field in a bar magnet and an electromagnet.
What is the difference between the magnetic field of a bar magnet and an electromagnet?
Responses
The magnetic field produced in a bar magnet has a higher intensity than that of an electromagnet.
The magnetic field produced in a bar magnet has a higher intensity than that of an electromagnet.
The magnetic field in an electromagnet lasts only as long as there is a supply of electric current.
The magnetic field in an electromagnet lasts only as long as there is a supply of electric current.
The intensity of the magnetic field in a bar magnet can be increased or decreased.
The intensity of the magnetic field in a bar magnet can be increased or decreased.
The direction of the magnetic field in a bar magnet varies with respect to time.