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How does distance affect magnetism?
Magnetic field strength (H) is defined as the magnetomotive force per unit length, and is expressed in amperes per metre (often spoken as 'ampere turns per metre') in SI. An older, and far more descriptive term, is 'magnetomotive force gradient'.The 'closeness' or intensity of a magnetic field's flux lines, on the other hand is termed magnetic flux density(B), expressed in teslas in SI.There is a complex relationship between magnetic field strength and flux density, because of a property exhibited by ferromagnetic materials, called 'hysteresis'. In general, as the magnetic field strength applied to a sample of unmagnetised ferromagnetic material increases, the resulting flux density also increases (but not linearly) until saturation is reached, at which point any further increase in magnetic field strength will have no effect whatsoever on the flux density. If the magnetic field strength is then reduced, the flux density will also reduce (again, not linearly), but when the magnetic field strength reaches zero amperes, a certain amount of flux density remains.So to answer your question, you really need to study what's known as the B-H or magnetising curve for a sample of ferromagnetic material -this will show you exactly what the relationship between magnetic field strength and flux density for any give ferromagnetic material.
What is the effect of a magnetic field on a stationary electric field?
The magnetic field will have no effect on a stationary electric charge. ( this means that the magnetic field is also stationary. ) If the charge is moving , relative to the magnetic field then there might be an effect, but the size and direction of the effect will depend on the direction of the electric charge as it moves through the field. If the charge is moving parallel to the field there will be no effect on it. If the charge is moving at right angles to the field then it will experience a force that is mutually orthogonal to the field and direction of the motion. You really need diagrams to properly explain this
What does an object need to be attracted to a magnet?
It needs to be made of a magnetic material, such as iron.Such materials are magnetic because they form magnetic domains, in which atoms align with one another (with respect to their axis of rotation).
Why magnetic strength is high at poles?
The answer is complicated. The simple answer is because the electron spin is aligned in the same direction. In most objects electron spin is random. In magnets most electrons are aligned with each other, creating a magnetic field. This orchestrated movement causes the field to be strongest at the poles.
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.
What sort of material do you need to use to detect the force of a magnet?
Anything magnetic and a metal object.
How much of a magnetic field Guss do you need to blow a cars computer?
how much of a magnetic field guss do i need to blow a cars computer
What is a magnetic field and how does it work?
Magnetic field is produced by varying electic field. It is a vector quantity. It originates from North pole and passes to south pole and it is a closed loop.Magnetic forces gives information about charge carriers in a material through Hall effectansw2. A magnetic field may be a fixed one - it does not need to vary. Consider a permanent magnet.All magnetic fields are caused by the movement of electrons. No moving electrons - no magnetic field.The Earth's magnetic field is created by electrical currents, running roughly parallel with the equator. There may be several such paths - we see the net effect.
What is a magnetic field and what it does?
Magnetic field is produced by varying electic field. It is a vector quantity. It originates from North pole and passes to south pole and it is a closed loop.Magnetic forces gives information about charge carriers in a material through Hall effectansw2. A magnetic field may be a fixed one - it does not need to vary. Consider a permanent magnet.All magnetic fields are caused by the movement of electrons. No moving electrons - no magnetic field.The Earth's magnetic field is created by electrical currents, running roughly parallel with the equator. There may be several such paths - we see the net effect.
Can PVC insulation hold the magnetic field created around a current carrying conductor?
No, to shield a magnetic field you need a magnetizable material with high permeability and low permanence. The most commonly used alloy for this purpose is called mumetal, an alloy of nickel and iron.
What sort of material do you need to use to detect the force?
Robert pipe is gay
What is electromagnetic induction?
Electromagnetic Induction mainly deals with the ways that energy is shifted about between Electric and Magnetic fields in various circumstances. Here are some major examples:1. A moving Electric Current Induces a Magnetic field: Electromagnets.2. A moving conductor in a magnetic field Induces an Electric Current: The Dynamo or Electric generator.3. An Electrified Conductor in a Magnetic field Induces motion in the Conductor: The Electric Motor.Related Information:Albert Einstein's considerations of inductance, an Electrified length of conductor moving through a Magnetic Field in an empty volume of space, led him to his theory of Special Relativity.
What is necessary for induction?
For electromagnetic induction, you need a conductor moving in a magnetic field.
What does an electromagnet need to generate a magnetic field?
Magnets can be divided into electromagnets and permanent magnets. An electromagnet consists of a iron core surrounded by a coil of wire. When an electric current passes through the wire coil, it will generate a magnetic field, which will be stronger because of the iron core. Iron is not the only material for the core, any ferromagnetic material may be used, some of which are ceramics. If there is no current in the coil, there will be no magnetic field. Have you seen pictures of crane - mounted electromagnets used in scrap yards?
How does distance affect magnetism?
Magnetic field strength (H) is defined as the magnetomotive force per unit length, and is expressed in amperes per metre (often spoken as 'ampere turns per metre') in SI. An older, and far more descriptive term, is 'magnetomotive force gradient'.The 'closeness' or intensity of a magnetic field's flux lines, on the other hand is termed magnetic flux density(B), expressed in teslas in SI.There is a complex relationship between magnetic field strength and flux density, because of a property exhibited by ferromagnetic materials, called 'hysteresis'. In general, as the magnetic field strength applied to a sample of unmagnetised ferromagnetic material increases, the resulting flux density also increases (but not linearly) until saturation is reached, at which point any further increase in magnetic field strength will have no effect whatsoever on the flux density. If the magnetic field strength is then reduced, the flux density will also reduce (again, not linearly), but when the magnetic field strength reaches zero amperes, a certain amount of flux density remains.So to answer your question, you really need to study what's known as the B-H or magnetising curve for a sample of ferromagnetic material -this will show you exactly what the relationship between magnetic field strength and flux density for any give ferromagnetic material.
What does a planet need in order to have Auroras?
A planet needs to have a magnetic field in order to have auroras.
How can you build an Electric generator?
You need copper wire to pass through a magnetic field
