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What else can I help you with?
What do you understand by negative and positive hall effect?
The Hall effect refers to the generation of a voltage difference across an electrical conductor when it is exposed to a magnetic field perpendicular to the current flow. The positive Hall effect occurs in materials where the charge carriers are positive holes (like in p-type semiconductors), resulting in a voltage that indicates the direction of the magnetic field. In contrast, the negative Hall effect occurs in materials with negative charge carriers (like electrons in n-type semiconductors), producing a voltage that reflects the opposite direction of the magnetic field. This phenomenon helps in determining the type of charge carriers in a material and is widely used in sensors and electronic devices.
What does a rapid change of a magnetic field induce?
It does not have to be positive or negative either one will produce reversal of the voltage applied by a factor
What is a degital?
Degital means of a clock or watch showing the time displayed on the digits rather then the hands or a pointer, expressed as a series of the digits 0 and 1, typically represented by values of a physical quantity such as voltage or magnetic polarization.
What is the main difference between HT and LT Lines?
It's the voltage: HT high voltage LT low voltage Tension = voltage (French?)
What is positive and negative voltage value?
generally we calculate voltage difference not absolute voltage but we say it voltage so if V(AB) is positive then V(BA) will be negative.V(AB) means voltage difference between A and B.
How do magnets generate electricity?
Magnets generate electricity by moving the magnet along a conductor, such as a wire. This is called induction. When magnetic lines of force sweep across a conductor, the magnetic field induces a voltage in the conductor. Voltage is "electrical pressure" and if a supporting circuit is set up connected to that conductor, current will flow.
When a magnetic field in a wire are moved near each other the voltage produced is said to be?
Induced
What causes the electrons to move in the electromagnetic induction animation?
In the electromagnetic induction animation, the movement of electrons is caused by a changing magnetic field passing through a conductor. This changing magnetic field induces a voltage in the conductor, which in turn creates an electric current that causes the electrons to move.
What is electromagnetic induction?
Electromagnetic Induction mainly deals with the ways that energy is shifted about between Electric and Magnetic fields in various circumstances. Here are some major examples:1. A moving Electric Current Induces a Magnetic field: Electromagnets.2. A moving conductor in a magnetic field Induces an Electric Current: The Dynamo or Electric generator.3. An Electrified Conductor in a Magnetic field Induces motion in the Conductor: The Electric Motor.Related Information:Albert Einstein's considerations of inductance, an Electrified length of conductor moving through a Magnetic Field in an empty volume of space, led him to his theory of Special Relativity.
How does a magnet create electricity?
A magnet can create electricity through electromagnetic induction. When a magnet moves near a conductor, such as a wire, it creates a changing magnetic field around the conductor. This changing magnetic field induces a current to flow in the wire, generating electricity.
When current flows in a conductor a magnetic field is created. The created magnetic field cuts the conductor which creates a voltage in the conductor. What is this voltage called?
It's called back EMF or reverse EMF. The EMF is electro-motive force, or voltage. What is happening is that the original current flow creates a magnetic field. That field then induces a voltage that opposes the original voltage that is causing the current flow. This back EMF "resists" the original voltage's efforts to cause current flow. If the created magnetic field did not oppose the original "efforts" of the voltage source to make current flow, then it would aid that voltage to make current flow. We would then get something for nothing and perpetual motion would be possible. We can't do that.
What is the process called in which a conductor cuts across a magnetic field and produces a voltage?
We call it induction when we pass a conductor through a magnetic field to produce voltage.
The magnitude of the voltage induced in a conductor moving through a stationary magnetic field depends on the what?
The magnitude of the voltage induced in a conductor moving through a stationary magnetic field depends on the length and the speed of the conductor.
How do wall transformers work?
Just like any other transformer - voltage is applied to one winding, which induces a magnetic field in the transformer core, which induces a voltage on the other winding.
Why transformer not produce DC current?
because transformer in made inductorAlternative AnswerTransformers are AC machines, and do not work with DC. This is because they require an alternating current to set up an alternating magnetic flux which then induces an alternating voltage into its secondary. Remember, there has to be a changing magnetic flux and a conductor for an emf. to be induced into that conductor.
How the voltage is induced in a single phase transformer?
The changing magnetic flux in the iron core of the transformer induces a voltage in the windings.
How is voltage induced in a conductor?
Voltage is induced in a conductor when there is a change in magnetic field passing through it, according to Faraday's law of electromagnetic induction. This change in magnetic field creates an electromotive force (emf) that drives the flow of electric current in the conductor.
