MAPPING OF MAGNETIC FIELD
To map
the magnetic field of a Bar Magnet when it is placed in Magnetic Meridian with
its North- pole pointing towards North.
Drawing Board, board pin, compass needle, white paper and bar magnet.
1.
A white sheet of paper is fastened to the drawing board using board pins or sellotape.
(When doing this all magnetic and magnetic materials are moved far away from
the drawing board)
2.
A small plotting compass needle is placed near the edge of the paper and the
board is rotated until the edge of the paper is parallel to the magnetic
needle.
This position should not be disturbed throughout the experiment.
3.
The compass needle is placed at the centre of the paper. e ends of the needle
i.e the new positions of the North and South Pole are marked when the needle
comes to rest. ese points are joined and straight line is obtained. is is the
magnetic meridian.
4.
Cardinal directions NEWS is drawn near the corner of the paper. e bar magnet is
placed on the line at the centre of the paper with its north pole facing the
geographic north. e outline of the bar magnet is drawn.
5.
The plotting compass is placed near the North Pole and the ends of the needle
are marked. Move the compass to a new position such that its south end occupies
the positions previously occupied by its north pole. In this way proceed step
by step till the South Pole of the magnet is reached.
6.
The lines of the magnetic forces are drawn by joining the plotted points around
the magnet. In the same way several magnetic lines of force are drawn around
the magnet as shown in the gure.
7.
The Curved lines represent the magnetic eld of the magnet. e direction of the
lines is shown by arrows heads.
The
magnetic lines of force are mapped when the bar magnet is placed. Direction of
the lines is shown by arrows heads.
Related Topics
Privacy Policy, Terms and Conditions, DMCA Policy and Compliant
Copyright © 2018-2024 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.