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What is the different electromagnets and permanent magnet?
Electromagnets are non permanent magnets. They got magnetic field because of applied electric field. They lost their magnetic field which was around that, when the applied electric field is stopped. permanent magnets have magnetic property always with it. Permanent magnetic property loses when we heat the material. It cannot be regained once again. But electromagnets are capable of regaining its magnetic properties.
A permanent magnet has magnetic properties because?
The magnetic domains are aligned
What do permanent magnets contain?
Permanent magnets contain magnetic atoms (almost always iron) whose magnetic poles are all (or mostly) aligned in the same direction.
What distinguishes a permanent magnet from a temporary magnet?
Permanent magnets do not lose their magnetic ability. Temporary magnets, however, gain magnetic properties when they are touched or moved by a permanent magnet. The properties of a temporary magnet dissipates over time after the permanent magnet is removed.
How are magnet forces caused?
All magnets, whether permanent or electromagnetic, are caused by the movement of electrons. In electromagnets, the electrons flow along the electrical conductor. In a permanent magnet, the electrons are spinning (as electrons are wont to do) and this causes the magnetic field. No moving electrons = no magnet. The magnetic field of the Earth is caused by electrical currents flowing in the magma, and aligned roughly parallel to the Equator. This alignment is probably caused by the inner core rotating slightly faster than the earth's skin. Due to the tidal drag of the Moon.
What planet has a permanent magnetic field?
Most importantly to us, the earth has a permanent magnetic field.
What is the different electromagnets and permanent magnet?
Electromagnets are non permanent magnets. They got magnetic field because of applied electric field. They lost their magnetic field which was around that, when the applied electric field is stopped. permanent magnets have magnetic property always with it. Permanent magnetic property loses when we heat the material. It cannot be regained once again. But electromagnets are capable of regaining its magnetic properties.
What is true of compasses?
They only point to the Magnetic NorthA compass is a permanent magnentA compass is a permanent magnet. A compass has both a south pole and a north pole. Compass magnets can be deflected by Earth's magnetic field or other permanent magnets.
Is Earth permanent magnetic?
No.-----The earth has an important magnetic field.No, Earth would lose its magnetic field if its molten iron core were not moving. Scientists speculate that Mars had a magnetic field a long time ago but lost it when the planet cooled to the point that its core solidified.
What is true compasses?
They only point to the Magnetic NorthA compass is a permanent magnentA compass is a permanent magnet. A compass has both a south pole and a north pole. Compass magnets can be deflected by Earth's magnetic field or other permanent magnets.
Why is it unlikely that earths core is a permanent magnet?
An electromagnet only retains major magnetic properties when a current is being run through it.AnswerWhether a material makes a permanent or temporary magnet depends on the nature of the ferromagnetic material involved. For example a coil with a steel core will retain much of its magnetic flux density when the current is switched off, whereas a coil with an iron core will lose most of its magnetic flux density when the current is switched off.
Why is the Earth's core magnetic if its temperature is above the level at which metal is magnetic?
Moving electrical currents do NOT have an upper temperature limit. You're thinking if permanent magnets.
Is a compass a permanent magnet?
Compass needles are permanent magnets. in response to the Earth's magnetic field, the compass needle will point toward the geographic North Pole.
Is A compass needle permanent a magnet?
Compass needles are permanent magnets. in response to the Earth's magnetic field, the compass needle will point toward the geographic North Pole.
What is the different between permanent magnetic alternator and alternator?
= What is the different between permanent magnetic alternator and alternator? =
Is Venus a permanent magnet?
No.-----The earth has an important magnetic field.No, Earth would lose its magnetic field if its molten iron core were not moving. Scientists speculate that Mars had a magnetic field a long time ago but lost it when the planet cooled to the point that its core solidified.
Why Is earth not a permanent magnet?
The simplest evidence that the Earth is not a permanent magnet is given by the fact of the polar wander. But more fundamentally, the interior of the Earth is far too hot for a magnet to retain its field. Pierre Curie worked on many things, and the loss of magnetism at elevated temperatures was one of his discoveries, and is known as the Curie point for a magnetic material. Importantly, the material cannot contain a magnetic field above this point. Thus a transformer will lose its abilities above the Curie point of the (iron) laminations inside.
