Power lines
can disrupt your electromagnetic field reading.
An electromagnet can be created from readily available materials, and the strength of its field can be varied. The field strength will depend on how strong the current is, how many windings the coil has and the distance from the electromagnet. A gaussmeter is used to take measurements of magnetic field strength, which is measured in Tesla. The closer to the ends of the coil and the larger the current running through the coil, the greater the electromagnetic field strength will be.
Instructions
1. Turn the gaussmeter on in an area free of electromagnetic fields. Most areas outdoors away from power lines will do. Set the background level of the device.
2. Connect the electromagnet to its power source. Make sure it is not near any other sources of magnetic fields, such as electronic devices, power lines or appliances.
3. Move the gaussmeter close to the electromagnet. The field will be strongest at either end of the coil. Watch as the field strength increases as you move it towards the electromagnet.
