i don‘t get an steady answer for this and i think that both are same.what i under stud was both are due to induction where eddy current is due to self induced emf and statically but back emf is dynamically induced emf by mutual induction and both create power lossesis this wright.or get me some clear explanations by which i can understand the differences better
An eddy contemporary (additionally uncomplicated as Foucault contemporary) is a phenomenon got here upon by technique of a French physicist Léon Foucault in 1851. this is brought about by technique of a transferring magnetic field intersecting a conductor or vice-versa. The relative action reasons a circulating bypass of electrons, or contemporary, in the conductor. those circulating eddies of contemporary create electromagnets with magnetic fields that oppose the substitute in the exterior magnetic field regulation). Electromotive tension (emf) is defined because of the fact the quantity of capacity gained in step with unit fee that passes with the aid of a gadget in the different direction to the electrical powered field produced by technique of that gadget. this is measured in volts. this is on the subject of a similar project which you do however the emf is greater a vector than eddy contemporary. I the measured eddy contemporary is emf.
eddy currents are usually currents that are formed in the magnetic material near the magnet and they will not produce any current in the circuit back emf is current induced in the current carrying line this may be secondary from the eddy current so you could have a eddy current created in the iron core of the transformer then as the eddy current collapses it creates a back emf in the wire Its been a while since I have studdied this . but i do know the eddy currents will usually be created in the iron cores not the current carrying conductor since the magnetic force comes from the current carrying conductor it would be logical to assume an induced voltage cant come from that said same current i FOUND an article on back emf homepages.ius.edu/dtraughb/Units/. A motor can perform useful mechanical work when a shaft connected to its rotating coil is attached to some external device. As the coil in the motor rotates however, the changing magnetic flux through it induces its own emf, which acts to reduce the current in the coil. The phrase is used for an emf that tends to back emf reduce the applied current. The back emf increases in magnitude as the rotational speed of the coil increases. We can picture this state of affairs as the equivalent circuit pictured below. When the motor is first turned on, the back emf is zero and the current in the motor is at a maximum and is given by Ohm's Law At the maximum speed, the back emf has its maximum value and the effective supplied voltage is now that of the external source minus the back emf, and the current is reduced to
It means you are installing a lower restriction exhaust system to help with performance and mileage. But mainly performance.
back emf is a potential diff that we can measure between the coil(let it be a perfect inductor) ends,its self induced not mutual eddy current occurs in the core not in the coil,the potnl diff due to eddy current cant be measured in the core
