magnetic field
Magnetic fields
Schematic illustration of the invisible magnetic field lines generated by the Earth, represented as a dipole magnet field
What is a magnetic field? A magnetic field is an invisible force field created by a magnet which exists all around it The magnetic field itself is compass and bar magnet Discover how you can use a battery and wire to make a magnet! Can you make it a stronger magnet? Can you make the magnetic field reverse
หากพรุ่งนี้ทุกอย่างหมุนไป This field is believed to be the result of movement in the Earth's core, which is divided between a solid inner core and molten outer core which The magnetic field is strongest at the center and weakest between the two poles just outside the bar magnet The magnetic field lines are least dense at the
