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What flux that does not follow the intended path in a magnetic circuit?
Wiki User
∙ 11y ago
leakage flux
Wiki User
∙ 11y ago
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What is the principle of electomagnetic induction?
What? whenever a magnetic flux linked with the coil changes an emf induce in the circuit..
Can a magnet create electricity?
yes, when a copper wire is coiled around it and attached to a battery, an electrical current passes through it. =============================== The above is not the apt answer for the query made. Yes when a magnet is moved through a coil of wire then current is induced in it. This phenomenon is known as electro magnetic induction and current is known as induced current. This is because of change of magnetic flux linked with the coil. So whenever there is a change in magnetic flux linked with a closed circuit then current is induced in the circuit. The current lasts so long as there is change in magnetic flux. Just link of magnetic flux will not induce any current. Only the change of magnetic flux does everything. This is very very important.
What does magnetic flux mean in physics?
The magnetic flux is the measure of the strength of a magnetic field. The total magnetic flux through a closed surface is zero, according to Gauss's law for magnetism.
What is the causes of electromagnetic induction?
Change in magnetic flux.iechange in magnetic field (B).change in the area vector/ area of magnetic field under the closed circuit (A).The angle between area vector and magnetic field .......xomagnetic flux = cosxo . A . B
What are sources of error when obtaining earth magnetic flux density experiment?
suggestion of the improvement in experiments magnetic flux?
How can the magnetic flux associated with coil or a closed circuit be changed?
A simple method for altering the magnetic flux would be to change the amount of current flowing in the coil or circuit. Generally speaking, more current, more magnetic flux, and vice versa.
What is inverse of inductance?
reluctance, it is the resistance of a magnetic circuit to the establishment of a magnetic flux by a magnetomotive force.
How Michael Faraday discovered electromagnetic induction?
Move a magnet into a coil, and a voltage is induced into that coil, causing a galvanometer to deflect. Withdraw the magnet, and the galvanometer will deflect in the opposite direction, indicating that the induced voltage depends upon the direction of motion of the magnet.
What is Newmanns law?
It suggests that :- An EMF is set Up in circuit when the magnetic flux linking the circuit is changed in any manner.The magnitude of this EMF is proportional to the time rate of flux linkage with circuit.
What is the limit for magnetic field developed for a DC machine?
The magnetic field used in machines is quantified in terms of its flux density (symbol: B), expressed in teslas. The flux density is established by the magnetic field strength (H), expressed in amperes per metre, set up in the field windings.As the magnetic field strength increases, the flux density increases until it reaches saturation. This is the point when the magnetic domains within the magnetic circuit are all aligned. At this point, any further increase in magnetic field strength will fail to increase the flux density.So saturation of the magnetic circuit limits the flux density of the field.
How much volts or currents in order to produce one tesla?
There is no straightforward answer to your question. A tesla is the unit of measurement for magnetic flux density, defined in terms of magnetic flux per unit area. Magnetic flux density is determined by the magnetic field strength of the magnetic circuit in question which is expressed in ampere (turns) per metre. Unfortunately, the relationship between magnetic field strength and flux density isn't straightforward, as it depends on the shape of the B/H curve for the magnetic circuit's material. So, as you can see, there are too many unknown variables to give you a straightforward answer.
Air gap flux is termed as useful flux why?
Basically useful fluke is the flux that flows with in the magnetic circuit of an armature. That is why when there is an air gap the flux enters the armature which makes it useful flux! Hope that answers your question!
Application of electrical circuit analogies in magnetic circuit?
Magnetic circuit follows equation (4) that is Ni = (Ф) ( l / μA) or m.m.f(magneto motive force) = (Flux) (reluctance).Electric circuit follows ohm's law that is E = I.R or e.m.f(electro motive force) = (current) (Resistance)From above point m.m.f in magnetic circuit is like as e.m.f in electrical circuit.Flux in magnetic circuit is similar as current in electrical circuit.Reluctance in magnetic circuit, S = ( l / μA) is similar to resistance R = (ρl/A) in electric circuit.Permeance (= 1/reluctance) in magnetic circuit is equivalent to conductance (=1/resistance) in electric circuit.In magnetic circuit flux establishes but not flow like as current in magnetic circuit.In magnetic circuit energy needed only to establish the flux but no consistent energy need to maintain it whereas in electric circuit continuous energy needed to flow of current.Resistance of an electric circuit is constant (for same temperature) and is independent of current but reluctance of magnetic circuit is not constant because it depends on μ (=B/H) which is not constant and depends on B/H.
What is magnetic relunctance?
Reluctance is the opposition offered by a magnetic circuit to the formation of magnetic flux. It is equivalent to resistance in an electric circuit.Reluctance is the ratio of a magnetic circuit's magnetomotive force (measured in amperes) to its magnetic flux(measured in webers, pronounced 'vay-bers'). So, reluctance is measured in amperes per weber (which is often 'spoken' as 'ampere-turns per weber'). This is equivalent, in an electric circuit, to the ratio: electomotive force to electric current.
What are the safety features available in a breaker?
To detect and open the circuit if a thermal overload is present and to detect and open the circuit if a short circuit caused by a magnetic increase of flux in the circuit.
What is the principle of electomagnetic induction?
What? whenever a magnetic flux linked with the coil changes an emf induce in the circuit..
Is it need iron core in dc generator?
If, by 'core', you mean its magnetic circuit, the answer is yes you do! Without a magnetic circuit, you will not be able to concentrate the magnetic flux within the air gaps enough to produce sufficient torque on the rotor windings.
