0
EMF= Voltage
When and electron travels through a conductor it creates a ripple in space, just like a boat creates one in water.
Generated
The speed or force at which the boat is moving is the voltage and is generated by a source in this case is the engine.
Induced
When the boat with an engine passes by a boat with no engine the ripple or wave will move the other boat. speed of the moving boat again, is the voltage but this time its induced.
Like wise when electrons flow on a wire the ripples or magnetic flux will induce or generate motion on any wire or conductor next to it. That's how Transformers work. ;)
What else can I help you with?
Difference between back EMF and induced EMF?
An induced electromotive force (emf) is an induced voltage. Voltage (emf) causes current flow, and this induced voltage will cause a current that is called the induced current.We might also add that the induced current will cause a magnetic field to expand about the current path, and this field will "sweep" the conductor. The sweeping of the conductor by that expanding magnetic field will set up an emf that will oppose the emf that was creating it.CommentTechnically, there is no such thing as an 'induced current'. It is voltage that is induced. Any current flows as a result of that induced voltage being applied to a load. But that current is certainly NOT induced!
Does motional emf call induced emf?
yes indused emf is also called motional emf. If an open coil is subjected to a variable magnetic field, at the ends of the coil a potential difference is induced which is called induced emf. If a coil is connected to an emf source and switched on, the rising current will produced an variable magnetic field which in turn produces an emf. It is called back emf.
What are the Example each for self induced and mutually induced emf?
if an emf is induced in a coil due to the current flowing through itself is called SELF INDUCTANCE. on the other hand if an emf is induced on another coil due to the current flowing through the previous coil then it is called MUTUAL INDUCTANCE. suppose there are two coils A and B a current is flowing through A. now if the flux produced due to this current induce an emf on the same coil A, then it is SELF INDUCTANCE, and if it produce emf on B, then it is MUTUAL INDUCTANCE due to coil A.
Why induced current in a coil opposes the EMF producing it?
lenzs law
What four factors affect the magnitude of the induced emf in a coil of wire?
The magnitude of the induced electromotive force (emf) in a coil of wire is affected by four main factors: the strength of the magnetic field, the area of the coil, the number of turns in the coil, and the rate of change of the magnetic field. According to Faraday's law of electromagnetic induction, a stronger magnetic field or a larger coil area increases the induced emf. Additionally, more turns in the coil enhance the induced voltage, while a faster change in the magnetic field also contributes to a greater induced emf.
What is the induced emf in case (a)?
In case (a), the induced emf is the electromotive force generated in a coil or conductor due to a changing magnetic field.
What is the induced electromotive force (EMF) in this loop?
The induced electromotive force (EMF) in a loop is the voltage generated when there is a change in magnetic field within the loop.
What is the average induced emf in the loop?
The average induced electromotive force (emf) in the loop is the average amount of voltage generated in the loop due to a changing magnetic field.
In colomn answer of difference between statically indused emf and dynamicaly indused emf?
Statically induced emf is produced by the relative motion between a conductor and a magnetic field, while dynamically induced emf is generated due to a change in the magnetic field strength experienced by a conductor. Statically induced emf does not require any physical movement of the conductor, while dynamically induced emf is produced when the magnetic field changes over time.
How is emf induced in an alternator?
EMF or electromotive force, i.e.Voltage, is generated when the magnets inside the alternator turn within the wire coil of the alternator.
What is the induced emf in the coil when a magnetic field is applied?
When a magnetic field is applied to a coil, it creates an induced electromotive force (emf) in the coil. This emf is generated due to the change in magnetic flux through the coil, according to Faraday's law of electromagnetic induction.
Difference between induced emf and generated emf?
In an analogy, Generated EMFs can be considered as the speed or force at which the boat is moving, while Induced EMFs can be considered as a standyby boat with no engine, when the moving boat with an engine passes. Generated EMFs, considered as the boat with an engine, is the voltage which is generated by a source, by which in this case is the engine, while the Induced EMF, considered as the boat with no engine, is affected by the moving boat with an engine, thereby also moving the Induced EMF. In a sense, Generated EMFs have their own source while Induced are only 'moved' by other external forces. Like wise when electrons flow on a wire the ripples or magnetic flux will induce or generate motion on any wire or conductor next to it. That's how transformers work.
How are motion induced electric fields and motional emf related in the context of electromagnetic induction?
Motion-induced electric fields and motional emf are related in the context of electromagnetic induction because both phenomena involve the generation of an electric field due to a changing magnetic field. When a conductor moves through a magnetic field, it experiences a motional emf, which is the voltage induced in the conductor. This motional emf is caused by the motion-induced electric fields that are generated in the conductor as a result of the changing magnetic field. In essence, motion-induced electric fields lead to the generation of motional emf through electromagnetic induction.
Why change in flux causes generation of electricity?
whenever flux changes an emf is induced if ressistance is connected to that side current is generated.
Difference between back EMF and induced EMF?
An induced electromotive force (emf) is an induced voltage. Voltage (emf) causes current flow, and this induced voltage will cause a current that is called the induced current.We might also add that the induced current will cause a magnetic field to expand about the current path, and this field will "sweep" the conductor. The sweeping of the conductor by that expanding magnetic field will set up an emf that will oppose the emf that was creating it.CommentTechnically, there is no such thing as an 'induced current'. It is voltage that is induced. Any current flows as a result of that induced voltage being applied to a load. But that current is certainly NOT induced!
Does motional emf call induced emf?
yes indused emf is also called motional emf. If an open coil is subjected to a variable magnetic field, at the ends of the coil a potential difference is induced which is called induced emf. If a coil is connected to an emf source and switched on, the rising current will produced an variable magnetic field which in turn produces an emf. It is called back emf.
What are the factors that determines the size and direction of the generated emf?
The size of the generated electromotive force (emf) is determined by the rate at which the magnetic field changes within a circuit, and the number of turns in the coil. The direction of the emf is determined by Lenz's law, which states that the induced current will flow in a direction that opposes the change in magnetic field that produced it.
