Nothing.
The compass needle is a magnet and as you have probably tried, a magnet will 'stick' to an Iron bar. Thus as you move the compass near the Iron, its magnetic field lines are bent by the Iron and become locally stronger than the field lines of the planet, deflecting the needle away from north.
13
The compass needle aligns itself parallel to the direction of the lines of magnetic force where it happens to be. It does not 'point to a particular pole' for that is beyond the sensibility of a simple bar of metal. I repeat, it aligns itself parallel to the lines of magnetic force ...
Well there isn't any positive or negative on a magnet. But to find North and South, you can suspend a bar magnet on a string and see which way it points, or use a compass. Remember that the North Magnetic Pole defines what Magnetic North is, and on a compass or a bar magnet the SOUTH magnetic pole point at it.
The compass needle is a small bar magnet balanced on a pin. It swivels freely on this balance point. This is how it can align with the magnetic field of the Earth to show what direction magnetic north is. When you introduce another magnetic field, like from a magnet in close proximity, the needle will align with these local fields since their field strength is stronger than Earth's magnetic field - locally.
The bar that affects the compass is the magnet, The bar that is attracted to the magnet is iron, and the bar that is not attracted to the magnet is aluminum.
gago.
Yes. Line the bar up pointing north-south, and whang on it with a hammer for a minute or so. If you hold a compass close to it, the compass should align with the bar, whichever direction it is pointing, showing you that the bar has been magnetized.
A compass magnet or a compass needle.
The compass needle is a magnet and as you have probably tried, a magnet will 'stick' to an Iron bar. Thus as you move the compass near the Iron, its magnetic field lines are bent by the Iron and become locally stronger than the field lines of the planet, deflecting the needle away from north.
There are several websites that sell aluminum bar grating. Local hardware stores may also sell aluminum bar grating.
r this question....
No.No.
The extruded bar would be produced by pushing molten aluminum through a die. Where as the other option for making the bar would be to cast it in a mould. The extruded bar would probably have smoother sides and would be available in longer lengths.
click to close button
5.40
compass