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How Do you Turn A Normal Magnet Into An Electromagnet?
Essentially, the magnetic field has to alternate. The alternation causes the flow of electrons (electricity). Electrical, magnetic and mechanical energy are all related. In an electric motor, magenetism and electric current are used to convert to mechanical energy. If you physically move either the wire or the magnetic field, an electrical energy flow would result. In order to get a large magnitude, you would have to exert a large magnitude of physical mechanical energy or have a very large magnetic energy source.
Who found magnet?
no
How can the current on an electromagnet increase?
Yeah buddy - until something smokes. It does, and so does increasing the amp supply but you have to be careful not to melt the wire. Preferably you should increase both. -Good Luck Note; You automatically increase the amps being used by increasing the voltage applied.
How is magnet important in compass?
To indicate the direction in which the map is drawn to. Without the compass rose, you would not know which direction you are heading to, neither would you be able to navigate your way out with a compass in your hand.
What does the term frequency mean?
The amount of times something happens within a certain period of time. In Herz, and while talking about sound, this would be the amount of waves every second.
How do you make a needle magnetic?
rub against needle with strong magnet i guess 1. Hold a needle by the eye and stroke it gently 30 times with your magnet, in the same direction. Do the same with the second needle, making sure that you use the same end of the magnet. 2. Test your needle-magnets on some pins before you use them for other experiments.
How can you magnetise a needle?
There are several ways. 1. Stroke the needle in one direction, with another magnet. 2. Place it in a coil of wire and pass a large (DC) current through the coil for a few seconds. (This is how they would do it commercially) 3. Align the needle with the magnetic north/south direction, now hit it several times. It will eventually take on the earths magnetic field as it's own.
What do you need to make a floating compass?
You would need a piece of cork or other soft floating material, perhaps polystyrene, also a needle and a magnet. stroke the needle with the magnet a few times in the same direction and them insert the needle into the floater so that it is horizontal when the floater is placed in water, place floater into a container of water, the needle will point toward the magnetic north.
How do you magnetise a needle?
You can magnetize a needle by rubbing it against a magnet in one direction multiple times. This process aligns the magnetic domains within the needle to create a magnetic field. Alternatively, you can use a strong electrical current to induce magnetization in the needle.
How and what shall you use to make a homemade magnet?
It depends what you want to use it for. You can take something like a needle and stroke it in one directions multiple times over a magnet ( You can use that needle as a compass pointing north with some other help) Something else you can do, is take a long nail and twist some copper wire around it multiple times. If you then take each end of that copper wire and attach it to the respective ends on the battery it will create an electro magnet
How you can make an iron into a magnet?
Use the magnet to stroke the iron nail many times and you try to attract something
How can I magnetize a needle?
To magnetize a needle, you can rub it against a magnet in the same direction multiple times. This will align the magnetic domains in the needle and make it magnetic.
How do you find which way is north with a magnet?
To find north you will need the magnet, a needle, a piece of very thin paper & a bucket of water. First you need to take the positive side of the magnet and slide it across the first half of the needle, as if you were striking a match, fifty times. Then do the same with the negative side of the magnet and the other side of the needle. Afterwards, put the needle in the paper so that there are 2 holes and the needle lies horizontally, then place in the water. The positive side of the needle will point North.
How do you magnetize hand tools?
stroke it with another magnet about 20 times.the more times the more times the strongerit is
What is the best way to magnetize a needle?
Rubbing a magnet along the needle in one direction will align the needle's magnetic domains and magnetize it. For stronger magnetization, repeat the process multiple times in the same direction. Be cautious when handling magnets to avoid accidental demagnetization.
Why would a hiker carry a magnet and a string?
Using a magnet, string and needle you can create a crude but workable compass. Method Get a needle or a very small nail and a bar magnet. Also get some thread or a bowl of water and two tiny pieces of cork. Hold the needle in one hand and the magnet in the other. Put the North end of the magnet against the needle in the middle and rub it towards and off the point. Lift the magnet up and away from the needle and place it in the middle again. Repeat rubbing the North end of the magnet against one half of the needle 20 times or so. Flip the magnet over so you are using the South end and rub it from the middle to the 'eye' end of the needle 20 times. You have magnetized the needle just like a compass needle. Hanging Compass Tie one end of a length of thread to a stick and the other end to the middle of the needle. Balance is important Let the needle hang freely and slide the thread to a point on the needle where it balances level. Lower the needle into a wide-mouthed jar and lay the stick across the opening to prevent wind interference. Watch which way your compass needle turns. It should always settle to the same direction.
If you are magnetising a needle what direction you must always stroke?
The idea is to line up the electrical fields of the atoms, and to do that you have to stroke in one direction or the other. However, whether you stroke left to right or right to left doesn't matter.
