Target
Make an electromagnet with coils of wire. The purpose of these experiments Science fair is to test the strength of the electromagnet can. You can also determine how the intensity of the magnetic field is influenced by the number of the wire wrapped around him, while the magnet.
Introduction
A magnetic field is produced when a flow of current through a wire. The same can be demonstrated in scientific experiments with a singlemagnetic compass. Since a single cable has a relatively low magnetic field, the wire can be wrapped, please note that the increase included the strength of the magnetic field with each coil.
Discover how the intensity of the magnetic field changes when the coil is increased. You will also need the coil) directly (parallel or perpendicular, to be effective.
Hardware
A 6V battery, alligator clips, magnetic wire, tape, paper clips (oneBox) or 200 shots of steel (1 cm diameter) and three long pieces of material, such as iron nails and iron bolts or pieces of iron pipe.
Preparation
Three different electromagnets must be made with material of equal length. Now, wrap the wire around each unique magnetic part of the base material, but to be the number of images for each piece differently. For example, a piece with 100 laps, the second with 200 laps and will be wrappedthird place with 500 laps. Hold the wire wrapped at both ends to connect the tape together and leave at least 5 to 6 cm of additional wire must be connected to the battery. With the knife carefully the isolation of the free end of the magnet wire and exposing 1 cm of copper wire.
The free end should alligator clips, which are still used in scientific experiments, Fair to be connected. The alligator clip should be connected to the battery. Use a tray to hold lowStaples (slices).
Procedure
Start with the base material with 100 turns of the coil.
Connect the alligator clips to the battery and hold the coil of the electromagnet parallel to the plate to touch the paper clips (washers) to collect the coil. Move the roll-out of the tank and remove the battery. Now count how many paper clips were attached to the coil, and note the number of a table. Repeat the same procedure 4Times and calculate the mean of 5 readings and write it in the table.
Well, to keep the angles of the electromagnetic coil to touch the paper clips (discs) with the coil. Move the roll-out of the tank and remove the battery. Now count how many paper clips were attached to the coil, and note the number of the table. Repeat 4 times and the mean of 5 readings and write it in the table.
Then you take the role200 rounds and repeat steps 1 and 2
Then go to the coil with 500 turns, and repeat steps 1 and 2
Be sure to include your conclusions without guilt. The table consists of a series of numbers. The graphics are very important for the science fair experiments. Then you draw a diagram showing the results for each orientation. The X axis is the number of revolutions to reflect and the y-axis, how many paper clips (washers) are reflected in the attached electromagnet.
WhenA glance at the table, you will be surprised that in May all your efforts of curved lines, which were given to speak louder than numbers.
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