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When coil are conneted to dc supply what happened in core pole?
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The value of inductance for a coil with an air core is higher than the same coil with a ferrite core True or False?
false
Why air coil with soft iron core inductance is greater then air coil laminated steel core?
Soft iron has a greater permeability than steel. BTW, the only reason for laminations is to reduce eddy currents in the core. It has no effect on permeability or inductance.
What is coil linearity?
A variable linearity coil has a coil which is wound around a magnetic core, a permanent magnet for charging a bias magnetic field to the magnetic core, and a magnetic field adjusting coil for adjusting the bias magnetic field. The coil and the magnetic field adjusting coil are respectively disposed horizontally such that an axial line of each of the coils lies perpendicular to lead terminals to which terminal ends of each of the coils are connected. The coil, the magnetic field adjusting coil, and the permanent magnet may be contained in a casing and the terminal ends of each of the coil and the magnetic field adjusting coil are connected to lead terminals which are embedded into the casing
What is the purpose of blow out coil with laminated core in ac power contactor?
The laminations reduce a core loss called Eddy Currents, which are set up in the core by the ever changing AC current.
How do you isolate magnetism remaining in the core of a electromagnet after the coil current is removed?
Your question is confusing, as you do not explain what you mean by 'isolate'. If you mean 'allow the core to retain some magnetism', then this will always be the case when the current through the coil is reduced to zero. In order to remove this 'residual magnetism', you will need to reverse the direction of current through the coil. This is a feature of what is known as 'hysteresis', by which changes in the flux density of a core 'lags behind' changes to the magnetic field strength that creates it.
What are the components of an electromagnet?
Coil and core, and you'll need a power supply to activate it.
A coil of wires wrapped around a core?
A coil of wires wrapped around a core is an electromagnet.
The value of inductance for a coil with an air core is higher than the same coil with a ferrite core True or False?
false
How is electromagnetic different from a magnet?
A 'natural' magnet - is made from magnetic materials found in the Earth. an electro-magnet is made by wrapping a coil of wire around a metalic 'core' and connecting the coil to a power supply. It is only magnetic so long as there is current flowing through the coil.
How is electromagnets different from magnets?
A 'natural' magnet - is made from magnetic materials found in the Earth. an electro-magnet is made by wrapping a coil of wire around a metalic 'core' and connecting the coil to a power supply. It is only magnetic so long as there is current flowing through the coil.
Inserting a soft iron core into a coil has what effect on the inductance of a coil?
increase inductance
What is a heater coil and a heater core?
The heater coil and a heater core is the same thing. Hot water circulates from the engine and through the heater core then back to engine generating heat for your heater system.
Is the core of an electromagnet a piece of steel in the center of the coil?
no
What consists of a coil with an iron core and a movable iron bar?
A solenoid consists of a coil with an iron core and a movable iron bar. The term was coined by French physicist, Andre-Marie Ampere.
What kind of device is a telsa coil?
Tesla coil is a resonant air core transformer. There are other known devices that are like the Tesla coil.
Is the core of an electromagnet a piece of steel put in the center of the coil?
no
The core of an electromagnet is a piece of steel put in the center of the coil?
no
