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Why can an induction heating process heat magnetic material faster than non magnetic material?
To heat something by induction (which is and oscillating magnetic field), the material has to react to the magnetic field. As the magnetic field is made to oscillate, the molecules of the material are pulled and vibrated in sympathy with the field and their vibration energy increases. Heat IS the vibration of molecules. Thus induction heating will work on a magnetic material but will have no effect on a material that is not magnetically susceptible.
Why is B the symbol for magnetic induction?
When the magnetic field is observed from the North pole, the magnetic field emerges and and goes towards south. However, inside a magnet there is no field at all, thus forming butterfly shape lines. Hence, B stands for butterfly and due to this concept, scientists used the symbol B for magnetic induction.
Does hemoglobin attracted by external magnetic field?
Hemoglobin is not attracted by an external magnetic field because it is a diamagnetic substance which means it weakly repels magnetic fields. This property is due to the lack of unpaired electrons in its structure, making it largely unaffected by magnetic forces.
Is dubnium magnetic?
Yes, dubnium is expected to be magnetic based on its position in the periodic table and its electron configuration. However, due to its scarcity and short half-life, its magnetic properties have not been extensively studied.
What happens if magnet is placed next to copper?
When a magnet is placed next to copper, the magnetic field of the magnet induces an electrical current in the copper due to electromagnetic induction. This effect is known as eddy currents, causing the copper to become magnetized temporarily.
What is the formula for calculating the magnetic field due to a dipole?
The formula for calculating the magnetic field due to a dipole is given by: B dfracmu04pi left( dfrac2mr3 right) where: ( B ) is the magnetic field, ( mu0 ) is the permeability of free space, ( m ) is the magnetic moment of the dipole, and ( r ) is the distance from the dipole.
What is difference between between electric dipole moment and magnetic dipole moment?
An electric dipole moment is a measure of the separation of positive and negative charges in a system, creating an electric field. A magnetic dipole moment, on the other hand, is a measure of the strength and orientation of a magnetic field created by a current loop or a moving charge. In essence, electric dipole moments deal with electric fields generated by charges, while magnetic dipole moments pertain to magnetic fields generated by moving charges.
Are dipole-dipole forces short-range or long-range?
Dipole-dipole forces are considered to be short-range forces. They occur between molecules that possess permanent dipoles due to differences in electronegativity, and they typically act over small distances.
What is the process by which electric current is generated by placing a wire in a magnetic field?
When a wire is placed in a magnetic field and moved relative to the field, an electric current is induced in the wire due to electromagnetic induction. This phenomenon occurs due to the interaction between the magnetic field and the moving electric charges within the wire, creating an electromotive force (EMF) that drives the current flow.
Electric dipole in uniform magnetic field?
An electric dipole consists of two equal and opposite charges separated by a distance. When placed in a uniform magnetic field, the charges experience a force in opposite directions due to their opposite velocities in the field. This results in a torque acting to align the dipole along the field lines of the magnetic field.
Why can an induction heating process heat magnetic material faster than non magnetic material?
To heat something by induction (which is and oscillating magnetic field), the material has to react to the magnetic field. As the magnetic field is made to oscillate, the molecules of the material are pulled and vibrated in sympathy with the field and their vibration energy increases. Heat IS the vibration of molecules. Thus induction heating will work on a magnetic material but will have no effect on a material that is not magnetically susceptible.
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 happens when a wire moves up or down repeatedly in a magnetic field?
When a wire moves up or down repeatedly in a magnetic field, an electric current is induced in the wire due to electromagnetic induction. This phenomenon is described by Faraday's Law of Electromagnetic Induction. The induced current creates a magnetic field that opposes the original change in magnetic flux.
Difference between inductance and inductive reactance?
The opposition to AC current flow in a circuit due to induction is called inductive reactance.The process of generating electrical current in a conductor by placing the conductor in a changing magnetic field is induction or just induction.
What is primary induction?
Primary induction refers to the initial phase in the process of electrical generation, particularly in electrical machines like generators and transformers, where an alternating current (AC) is induced in the primary winding. This induction occurs due to the changing magnetic field created by the current flowing through the primary coil, which then produces a magnetic flux that induces an electromotive force (EMF) in the secondary winding. The principle is based on Faraday's law of electromagnetic induction, which states that a change in magnetic flux can generate an electric current.
When a conductor is passed through a magnetic field a current is induced in the?
conductor due to electromagnetic induction. This occurs because the changing magnetic field around the conductor induces an electric current to flow through it.
What is the nature of symmetry of a field due to a dipole?
the nature of symmetry of a field due to a dipole is cylindrical in nature
