Question

HIII❤️❤️❤️❤️
DESCRIBE AN ACTIVITY TO SHOW MAGNETIC FIELD LINES
AROUND A BAR MAGNET​

Answer 1

Materials :

White paper sheet, drawing board, adhesive, bar magnet, iron filings and magnetic compass.

Procedure :

• Fix a sheet of white paper on a drawing board using some adhesive material.

• Place a bar magnet in the centre of it.

• Sprinkle some iron filings uniformly around the bar magnet.

• Now tap the board gently.

• Observe the pattern in which the iron filings arrange themselves.

• Use a magnetic compass to determine the direction of the field lines.

Observation :

• Direction in which compass needle points is the direction of the magnetic field.

• The strength of the magnetic field is inversely proportional to the distance between the field lines.

• Magnetic field lines never cross each other. It is unique at every point in space.

• Magnetic field lines begin at the north pole of a magnet and terminate on the south pole.

OM!