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A permanent magnet (in contrast to an electromagnet).
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∙ 11y ago
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How long do germs live on inanimate objects?
up to six hours.
Magnetic poles always come in?
Pairs - although monopoles have long been speculated about!
Storing information in long-term memory?
A magnetic read write-head moves a cross a spinning disk changing the polarity of tiny magnetic particles in the disk(s). This can then be read at a later date.
Instrument that makes small distant objects visible?
An instrument that makes small, distant objects visible is a telescope. Binoculars and scopes are also used for seeing long distance.
Does a glass cup keep drink warm long?
No, a galss cup does not keep any drink warm long.
What are objects that keep their magnetic properties for a long time called?
Permanent magnets
Ojects that keep their magnetic properties for a long time are called?
magnetic
What magnets are made from materials which retain their magnetic properties for a long time?
Permanent magnets.
What kind magnets are made from materials which retain their magnetic properties for a long time?
Permanent magnets.
Why is austenite magnetic?
Austenite is not magnetic. It's an allotrope of iron, and has some alloying agents, but it only exists at high temperatures that are well above the Curie point of whatever iron alloy is heated. We know that metals that are magnetic will lose their magnetic properties above a certain temperature (called the Curie point), which varies for different metals and alloys. It is not possible for iron alloys (or any steels) to make the transition to austenite until well past the Curie point of the metal. Any magnetic properties the metal had will have long ago disappeared.
Is prostate massage dangerous?
Basically, no. But avoid sharp objects (including long fingernails) and keep things clean.
What are Magnetic Properties of Metals?
Iron (Fe) Cobalt (Co) and Nickel (Ni) iron, steel, nickel, and cobalt all have magnetic properties. Lodestone is also magnetic and was used to make early compasses a long time ago because it has magnetic metal elements in it.
Describe how the objects shown above will be affected by the forces acting on them?
Sadly, no matter how long or how intently I keep my gaze fixed above, I seem to be unable to make out either the objects or the forces acting on them.
What is the difference between a permanent magnet and a temporary magnet?
Temporary magnet: good example is an electromagnet. It maintains magnetic attraction only so long as an electric current surrounds it. Permanent magnet: most common. Example: bar magnet. Will maintain magnetic properties for quite a while, although they can be eventually demagnetized.
What Ancient blank reveal magnetic field blank from long ago?
Ancient earth reveal magnetic field as it was from long ago. :) :) :)
How long do epochs last?
Magnetic epochs last a long period of time, geologically. It is when the earth's magnetic field is the same polarity.
How does heat affect magnetism?
If one continously heats a particular magnet to high temperatures or long time or both, it loses it magnetism because the particles get excited and start forming no-magnetic arrangements.
