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What are the swirling currents called that are induced in transformers and produce heat losses?
Wiki User
∙ 10y ago
Eddy currents
Wiki User
∙ 10y ago
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What is the consequence of using DC as input in a transformer?
Basically, Transformers use magnetic energy to transmit a signal (voltage or current) from its primary to secondary. So there needs to be a magnetic flux associated with it. As we know, alternating current produces a variable flux and it causes an emf change in the secondary winding. But direct currents produce a constant magnetic flux which does not help to build up emf in the secondary. Another disadvantage is that there would be no self induced emf in the primary which opposes the changing current (in case of alternating currents) according to Lenz's law. So, the primary winding may burn out due to heavy constant current and its low input resistance.
Do batteries have the ability to generate a flow of electrons?
yes Batteries only produce direct currents
Who stated the law that the direction of induced current is always such as to oppose the change producing it?
This law was stated by Heinrich Friedrich Lenz (1804-1865). The law is stated as: The polarity of induced e.m.f is such that it tends to produce a current which opposes the change in magnetic flux that produces it.
Whose law state that the induced voltage will produce a current that always act oppose the change that originally caused it?
It is the Micheal Faraday's law of electromagnetism.
Only some currents are able to produce magnetic fields?
No. Any current produces a magnetic field. Look at Maxwell's equations.
How does an electric brakes work?
electric braking works due to two laws, Lenz's law and Faraday's Law. Faraday's law has to do with inducing an emf, when a disc on the axle is spun within a magnetic field, which is often created by an electromagnet we produce eddy currents. These eddy currents are fairly random and produce "swirling" induced currents within the disc. The overall net effect of these eddy currents act in a way to appose the motion of the dick spinning in the magnetic field. This according to Lenz's law creates a force to counter act the disk spinning and slows the car. Hence a breaking effect is achieved.
Is flow of induce current necessary when induce emf is being produce?
There is no such thing as an 'induced current'. Voltages are induced, not currents. If a voltage is self-induced into a coil, then that voltage will oppose any change in current. If a voltage is mutually-induced into a separate coil, no current will flow unless that coil is connected to a load.
Is Steven Spielberg making transformers 3?
IMDB says that Steven Spielberg will produce Transformers 3 (2011), as he had done it with Transformers and Transformers 2. There is no information about the director.
How convection currents produce wind?
Yes they do.
Can all currents produce magnetic fields?
yes
Why are aeroplanes shaped the way they are?
To produce lift with the least amount of induced drag.
What do you mean by induced electricity?
Induce: to bring about, to produce -or to create- then add electricity :)
Which sources produce alternating current?
AC generators, powerplants etc produce alternating currents.
Do oceanic electric fields produce electric currents?
Yes
Convection currents produce the heat in the earths interior?
False.
Does convections currents produce the heat in the earths interior?
False.
What is Induced breeding?
Induced breeding is an optimal effort to produce fish fry without considering the season. This technique is used to produce fry of fish species that have or potentially have great economic significance for aquaculture, which do not reproduces spontaneously in captivity.
