Question

How can iron filings provide evidence that a bar Manet has a magnetic field? Hey

Answer 1

In the picture to the right iron filings have been sprinkled around a bar magnet. The iron filings outline the magnetic field lines, making it visible. Magnetic fields all have a pair of "poles", from which "lines of force" or magnetic field lines appear to originate.

Answer 2

Answer:

The iron filings outline the magnetic field lines, making it visible. Magnetic fields all have a pair of "poles", from which "lines of force" or magnetic field lines appear to originate.

Explanation:

Iron fillings can provide evidence that a bar magnet has a magnetic field because iron filling quickly aligns in the design of the magnetic field.  It is the same with the Earth’s magnetic field