School of Physics Lecture Demonstration Manual

Eh-7 The Loadstone

Published: Tuesday 14 March 2006 - Updated: Tuesday 29 March 2011

Aim

To demonstrate a naturally occurring magnet ; the loadstone

Apparatus

Diagrams

Click on pictures to enlarge.

Loadstone Pic

Description

It is instructive that students see a sample of Loadstone (magnetic iron ore). The weak magnetic field is displayed by its effect on a compass needle on the overhead projector. Its strength may also be compared to a modern magnet by comparing its ability to attract small metal pieces.

Safety notes

Electrical safety 

Maintenance 

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