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If a bar copper is brought near a magnet the copper bar will be?
Wiki User
∙ 13y ago
I have just taken the test and the answer is.. b.) unaffected by the magnet
The copper bar will become reactive if/when magnet is in motion. example; if strong magnet is slid swiftly along copper bar by hand, reaction will occur as a reactive force or drag and can be easily observed by anyone willing to test it themselves. This reaction is a form of Induction.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoThe copper bar will "feel" the magnetic field as it is moved through it toward the magnet. This will induce a voltage and cause current flow in the copper bar. The bar won't "shock" anyone, but the simple act of moving it through a magnetic field causes induction (or induces a voltage). Charges, those pesky free electrons in the conductor (the copper) will be forced to move by "sweeping" action of the magnetic field.
Note that induction will only occur when there is relative motion involved. If the bar of copper is then held stationary, there will be no more induction or induced current flow. This is an "entry level" question to the creation of electricity by magnetic induction. The question is a good one, by the way. Any time a magnetic field "sweeps" a conductor, induction will occur. This is the underlying principle which we apply to light our world, power our industries, and propel the improvement in the quality of our lives.
the copper is unaffected by the magnet! i took the test & that's the answer!
Wiki User
∙ 9y agoIf a bar of copper is brought near a magnet, the copper bar will be still. It will not react to the magnet as long as it is stable.
Wiki User
∙ 15y agounaffected by the magnet
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What type of magnet attracts to iron but not for a long time?
Bar magnet. Because a bar magnet is strong to iron..... Or that's what we did in class.....
Why will a bar magnet fall slower and reach terminal velocity in a vertical copper or aluminum tube but not in a cardboard tube?
This is an aspect of Lenz's law. Copper is a non magnetic substance but is a conductor. When a magnet moves through the copper pipe it induces a current known as eddy currents. There will be a magnetic field created by the current. According to Lenz's law it will oppose the motion or change which is producing it. This results in an attractive force between the magnet and the copper pipe in which a current is induced by the falling magnet. The plastic rod is not conducting and hence it will not affect the fall.
Is heating a bar magnet chemical or physical change?
Actually itz just a temporary physical change.........as u dont add on subtract anything frm the magnet exept heat.....,heat does not effect chemical properties of an iron magnet..
Is making iron into a magnet a physical change?
To make an iron bar into a magnet you need to get a bar magnet and stroke the iron one way when you get to the end of iron take the magnet off and jump it back to the start and stroke repeat this several times and your bar will soon become magnetic. This is only temporary, therefore the iron will become normal after the magnetic field rubs off. This means that making iron into a magnet is indeed a physical change.
Effect of the magnet bar on iron and sulfur mixture?
The iron particles will lift out of the mixture and stick to the magnet while the sulphur is left behind, effectively separating the mixture.
If a bar of copper is brought near a magnet the copper bar will be what?
If a bar of copper is brought near a magnet and rubbed it will get magnetized and would behave like magnet. But this would be temporary and this property would wear after some days.
What happens when a bar magnet is brought near a compass?
gago.
How can you tell the difference between a bar of iron a bar of copper and a magnet?
Iron is a ferromagnetic metal, and copper is not. Iron will be attracted to the magnet but the copper will not.
How is iron and copper can be extracted by a bar magnet from a scrapyard?
learn how to write a question properly first.
On a bar magnet where are lines of magnetic force the greatest?
near both magnetic poles
Is a bar magnet magnetic?
A bar magnet is a magnet of rectangular shape with a north and and south end, which are sometimes coloured different colours to indicate which end is which.
Why is magnetism induced into an iron bar placed near a magnet?
A magnetic field induces an electric current. Hence, by placing the iron bar close to the magnet, a current is induced; and so we are, in effect, creating an electromagnet.
What can you conclude if you place the north pole of a bar magnet near the pole of an unmarked magnet and they repel?
That you have placed the magnet towards the northern pole of the unmarked magnet. Like poles retract while opposite poles attract
Is there a scale for magnet strength?
They are bar magnet ,horse shoe magnet ,lime stone magnet.
Is bar magnet a natural magnet?
no
What happens to the bar magnet as it nears the U magnet the bar magnet will?
Move towards the U magnet so that the poles attach.
The use of bar magnet in chemistry?
The magnet bar is used for stirring solutions.
