Creating Magnetic Field Project: Measuring Intensity

[Turtle]

How would one create a magnetic field?

If a science fair project I want to observe the effects of a magnetic field on plants. Is this a good idea?
How would one measure the intensity of the field?

 

[megashawn]

Well, basicly you need an electro magnet to generate a field.

You can find a pretty decent one inside of an electric pencil sharpener.

These use an ac voltage though so be carefull. Most of the time you can just open the case, remove the grinder and drive parts, and this will create a nice field. Atleast good enough to effect a plant or two.

As to measuring the intensity of the field, uhhh, brainfart,
http://www.trifield.com/gaussmeters.htm

Here is a place that sells them if you want a nice touch.

http://www.rowan.edu/colleges/las/physicsandastronomy/LabManual/labs/MeasMagFieldEarth.pdf

that might help. And I'm sure someone on here can explain it.

As to what effects it will have on a plant, I dunno.

 

[Graeme Robinson]

Creating a magnetic field can be done in a few different ways, depending on the materials and equipment available. One method is to use a permanent magnet, which can be purchased or made by rubbing a piece of iron or steel with a magnet to align the molecules and create a magnetic field. Another method is to use an electromagnet, which is created by passing an electric current through a coil of wire. The strength of the magnetic field can be adjusted by changing the amount of current flowing through the coil.

Using a magnetic field to observe its effects on plants can be a unique and interesting science fair project. However, it is important to carefully plan and consider the potential risks involved. Magnetic fields can affect the growth and development of plants, so it is important to ensure the safety of the plants and follow ethical guidelines for experimentation.

To measure the intensity of the magnetic field, a magnetometer can be used. This device measures the strength and direction of the magnetic field. Another option is to use a Gaussmeter, which specifically measures the strength of a magnetic field. Both of these tools are readily available for purchase or can be borrowed from a science lab or university.

It is also important to consider the variables that may affect the results of the project, such as the type of plant being used, the distance from the magnetic source, and the duration of exposure. By carefully controlling these variables and using appropriate tools, the intensity of the magnetic field can be accurately measured and the effects on plants can be observed.