what is the relation between electric and magnetic field?
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Electricity and magnetism are two related phenomena produced by the electromagnetic force. Together, they form electromagnetism. A moving electric charge generates a magnetic field. A magnetic field induces electric charge movement, producing an electric current.
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Both gravitational and electric field obey inverse square laws (e.g. F(grav)=GMm/r^2 and F(electric)=kq1q2/r^2 where GMm and kq1q2 are constants). They both act between two bodies without any means of contact. However gravitational force acts on mass while the electric force acts on charge.
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3) Electricity and magnetism are essentially two aspects of the same thing, because a changing electric field creates a magnetic field, and a changing magnetic field creates an electric field. (This is why physicists usually refer to "electromagnetism" or "electromagnetic" forces together, rather than separately.)
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Electric fields are produced by two kinds of charges, positive and negative. Magnetic fields are associated with two magnetic poles, north and south, although they are also produced by charges (but moving charges).
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EMF: Electric and Magnetic Fields Associated with the Use of Electric Power Booklet. NIEHS educational booklet, "EMF: Electric and Magnetic Fields Associated with the Use of Electric Power" It is important to remember that the strength of a magnetic field decreases dramatically with increasing distance from the source.
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Inverse relationships are common in nature. In electrostatics, the electrical force between two charged objects is inversely related to the distance of separation between the two objects. Increasing the separation distance between objects decreases the force of attraction or repulsion between the objects.
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ELECTRIC FLUX - It is generally linked with any surface is defined as the total number of electric field lines that pass through that surface. ... Electric flux is a scalar quantity. MAGNETIC FLUX - The magnetic lines of force passing normally through a surface is defined as magnetic flux.
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The changing magnetic field, in turn, induces an electric field so that a series of electrical and magnetic oscillations combine to produce a formation that propagates as an electromagnetic wave. ... At the same frequency, the magnetic field oscillates perpendicular to the electric field.
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Basically, the difference between an AC and DC magnetic field are that a DC magnetic field emanates from the earth naturally that is what allows a compass to find magnetic North; while AC magnetic fields emanate from man made electrical systems (power lines, transformers, computers, and anything with an electric motor) ...
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A field is a way to explain how forces can be applied without physical touch. A charge is pulling in something else with an electric force without touching it - the "stuff" that connects the charge with its force through empty space is the electric field. What is difference between electric field and electrical charge?
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Both electric and magnetic fields are the consequence of the attraction and repulsion of electric charges. However, a magnetic effect is caused by moving electric charges while an electric field is caused by stationary charges.
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Moving charges produce both electric and magnetic fields. An oscillating charge produces oscillating magnetic and electric fields. ... the energy associated EM wave is on the expense of energy of source and its frequency is equal to the frequency of oscillating charge. electromagnetic wave are transverse in nature.
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- The magnetic field is equal to the flux per unit area across an area at right angles to the magnetic field = magnetic flux density. - Magnetic force perpendicular to v → it cannot change the magnitude of the velocity, only its direction.
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The key difference between the two is that magnetism refers to the phenomena associated with magnetic fields or magnetic forces, whereas the term electromagnetism is the type of magnetism produced by electric current, and is associated with both magnetic fields and electric fields.
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The relation is very simple. Electric field intensity is equal to the negative of rate of change of potential with respet to the distance or it can be defined as the negative of the rate of derivative of potential difference, V with respect to r, E = - dV/dr.
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Magnetic force obeys an inverse square law with distance. The equation for magnetic force is similar to Coulomb's Law (if you are familiar with it). But the key point is that the force is inversely proportional to the distance squared (i.e. it obeys an inverse square law with distance).
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An electric field is the force that fills the space around every electric charge or group of charges. There are two types of electric fields: static (or electrostatic) fields and dynamic (or time-varying) fields. Electric fields have a definite magnitude and specific direction.