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What happens when you place a sheet of cardboard with iron filings perpendicular to a current carrying wire?
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Why do Concentric circles arrange around a current carrying conductor only if the cardbord is tapped gently?
The magnetic forces that cause the iron filings to align to the magnetic field are very weak and have trouble overcoming the forces of friction. When you tap the cardboard the filing jump up a bit and while they are in the air they are able to then rotate.
How can it be shown that a magnetic field exists around a wire through which a direct current is passing?
Take 1/4 in bolt that is 2 to 4 inches long and wrap it with 20 to 50 windings of small guage insulated wire, hook up each end to the terminals on a small 9 volt transister battery. Hold or move the bolt under a piece of paper that has a sprinkling of iron filings on it. The filings will align to the magnet lines of flux.
Do the dry and wet iron filings show the same physical properties?
Yes, they do.
What materials are use to 'see' the field lines around a magnet?
First sprinkle iron filings on a glass plate well scattered. Now place a bar magnet under the surface of the glass plate and give light jerks continuously to the plate. Gradually the iron filings would be arranged in curved lines. More filings are found concentrated near by the poles. These curved strutures stand for the magnetic lines in the vicinity of the magnet. Actually magnetic lines of force are only imaginary lines.
What are one of the processes that could be use to separate a mixture of iron filings wood shavings and salt?
Hi, A magnet will remove the iron filings, if you put the magnet inside a plastic bag first you can peel the bag off the magnet leaving the iron filings inside the bag - much easier than trying to scrape them off the magnet later. Adding water to the remaining salt / wood mixture and shaking or stirring will dissolve the salt. The wood shaveings can then be filtered off and washed to get rid of any remaining salt soloution. Finally the water can be evaporated from the salt solution to get the salt back. Hope this helps, Mike.
Why do Concentric circles arrange around a current carrying conductor only if the cardbord is tapped gently?
The magnetic forces that cause the iron filings to align to the magnetic field are very weak and have trouble overcoming the forces of friction. When you tap the cardboard the filing jump up a bit and while they are in the air they are able to then rotate.
How do you separate sand grains and iron filings using a magnet?
Well it's fairly easy. First, get a piece of cardboard and a small box that you can later throw away. Gather together the sand grains and iron filings into one spot, then, with a piece of cardboard spread the mix into a thin layer. (Use cardboard to avoid cutting your hands on the metal filings.) Hold the magnet just above the layer, sweeping it across the layer in a straight line. As the filings attach to the magnet, use cardboard edge to wipe them off the magnet into the cardboard box. Repeat with magnet over the layer, and again wipe the filings into the box. Repeat until the sand is fairly clean. Use a dustpan to clean up the sand.
Why are iron filings used to find the magnetic field when copper filings are not?
Copper filings are not attracted to a magnet, as iron filings are.
What is the difference between cross filings and draw filings?
cross filings remove materials and draw filings smooths it down that's what i read anyway
What is the density of aluminum filings?
The density of pure aluminum is 2.7.Filings have a packing ratio of roughly 0.6 so the density of the filings is about 1.6. this of course depends greatly on the size and shape of the filings.
How are business filings usually organized?
Business filings are usually organized into three separate sections. The sections would be action, reference, and archive. Action would be the current files. Reference would be those one would find on occasion. Archive would be for retention.
What is the separation method for iron filings and sulphur to obtain iron filings?
magnetic separation.
Explain how you can use physical properties to separate filings from sawdust?
If they are iron filings, you can use the property of magnetism to remove the iron filings using a magnet. You will need to rinse the iron filings with water after you remove them with the magnet in order to completely remove the sawdust from them.
Are iron filings a compound mixture or element?
pure substance
Is unheated sulfur and iron filings is substance or mixture?
Sulfur and iron filings together are a mixture.
Are iron filings a mixture?
Iron filings may be pure elemental iron, it depends on the source of the iron.
What technique will use to separate ashes and iron filings with water?
separate iron filings AND ash from water by filtration or evaporation then, if required, separate iron filings from ash by using a magnetic field,
