what can be used to plot the magnetic field around a bar magnet?

You can plot the magnetic field around a bar magnet using a small magnetic compass (plotting compass).

what can be used to plot the magnetic field around a bar magnet?

Quick Scoop

To see the otherwise invisible magnetic field around a bar magnet, school experiments typically use:

• A magnetic (plotting) compass to trace field lines point by point.

• Iron filings sprinkled on paper placed over the magnet to reveal the overall pattern.

Both methods let you “draw” or plot the field lines from the north pole to the south pole of the magnet.

Main Answer (Exam-style)

If you are answering this as a short physics question like:

“What can be used to plot the magnetic field around a bar magnet?”

The safest, textbook-style answer is:

• A small magnetic compass (plotting compass) can be used to plot the magnetic field around a bar magnet.

Sometimes, marking schemes also credit:

• Iron filings (used on a sheet of paper over the magnet) can be used to show/plot the pattern of the magnetic field.

If you must choose one , go with “a plotting compass” , because many curriculum questions explicitly say so.

Tiny Story-style Illustration

Imagine you place a bar magnet in the middle of a sheet of paper and trace its outline. You then put a small compass near the north pole of the magnet and mark the direction that the compass needle points. You move the compass a little along that direction, mark again, and keep going, joining the dots into a smooth curve. Over time, a beautiful pattern of loops appears on your page, each loop showing a magnetic field line from north to south.

That entire pattern came from just one simple tool: a magnetic compass.

Quick Bullet Recap

• Use a plotting compass to trace field lines point by point.

• You can also use iron filings on paper to reveal the field pattern visually.

• Field lines go from the north pole to the south pole of the bar magnet.

TL;DR: A small magnetic (plotting) compass is used to plot the magnetic field around a bar magnet; iron filings can also show the field pattern.

Information gathered from public forums or data available on the internet and portrayed here.