Question

When iron filings are spread on a piece of paper with a bar magnet at the centre, the iron filings align themselves along the ________ of the bar magnet.

• A. sides
• B. magnetic field lines
• C. circumference
• D. (a) and (b) above.

Answer 1

The correct option is B magnetic field lines

Iron filings are an example of magnetic materials. When spread across a bar magnet, they respond to the magnetic effect of the bar magnet and align themselves according to its magnetic field lines.