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There is no magnetic current because there are no magnetic charges.
What else can I help you with?
What is not a method of magnetization?
One method of magnetization that does not exist is through gravitational force. Magnetization can occur through methods such as electric current, contact with a magnetic field, or exposure to a strong magnetic material.
How do train brakes work?
Eddy current.(based on the concept of magnetization and demagnetization)
Why the magnetization current is not sinusoidal even though the input voltage is sinusoidal?
In ferromagnetic materials,such as electrical steel,the magnetisation curve is not a straight line,or else the relation B=μH is not linear ( μ is not constant),H is linear function of magnetization current,while B is linear function of input voltage ,so we have : Im=f(μ)U,where f(μ) is not constant,Im=magnetization (magnetizing) current, U=input voltage. I hope this will help.
Why does the magnetization current impose on upper limit on the voltage applied to a transformer core?
The magnetization current imposes an upper limit on the voltage applied to a transformer core due to the ability of the respective spark gap to extinguish. If too much current supply is available the spark gap becomes overheated. This makes it unable to "switch-off" when the high or elevated supply current is flowing through it.
Why does the magnetization current impose an upper limit on the voltage applied to a transformer?
The magnetization current imposes an upper limit on the voltage applied to a transformer core due to the ability of the respective spark gap to extinguish. If too much current supply is available the spark gap becomes overheated. This makes it unable to "switch-off" when the high or elevated supply current is flowing through it.
Why an ac supply is not used to magnetize a bar of steel?
An AC supply is not used to magnetize a bar of steel because the alternating current continuously changes direction, causing the magnetic field to fluctuate. This results in the magnetization being ineffective, as the steel would not retain a stable magnetic orientation. For permanent magnetization, a direct current (DC) supply is preferred, as it creates a steady magnetic field that can align the domains in the steel and maintain the magnetization.
How could you test the effects of heating and cooling on the magnetization of a bar magnet?
To test the effects of heating on magnetization, heat the bar magnet to a specific temperature and measure its magnetization using a magnetometer. To test the effects of cooling, cool the bar magnet to a specific temperature and again measure its magnetization. By comparing the magnetization measurements before and after heating or cooling, you can observe any changes in the magnetization properties of the bar magnet.
Can you Use d c current to magnetize?
yes. dc is used for magnetization. for instance in magnetic relays.. and in other many devices... you can make a search on the web for more.
What is magnetic hysteresis?
Magnetic hysteresis is the phenomenon where the magnetization of a material depends not only on the current magnetic field, but also its history. When the magnetic field is applied and then removed, the material retains some magnetization, showing a lag or "memory" in its response to changing magnetic fields. This results in the characteristic hysteresis loop observed in magnetic materials.
AC operation of magnetic circuit?
DC sources are not used for excitation of magnetic circuit of transformers and other AC machines. AC sources are used. The steady-state current is calculated by the applied voltage and resistance of the circuit when DC excitation is applied. The inductance in this case plays the role only for the transient part. The adjustment of the magnetic flux takes place as per the value of current to satisfy the relationship of B-H curve or magnetization curve. For the case of AC excitation, inductance comes into picture for steady-state performance. The flux is determined by the impressed voltage and frequency. The adjustment of magnetization current takes place as per the value of this flux to maintain the relationship imposed by the magnetization ....
Why the no-load current of an induction motor is high compared to a transformer?
Because of the presence of the air-gap between stator and rotor in motor the magnetization current is much higher than that of a transformer in addition to the friction and windage losses due to the rotation of the rotor.
Is hammering a method of magnetization?
Yes, hammering is a method of magnetization known as mechanical magnetization. When a ferromagnetic material is struck, the impact can align some of its magnetic domains in the direction of the applied force, enhancing its magnetization. This process is often used in various applications to temporarily or permanently magnetize materials. However, it is not the most efficient method compared to others like electrical or thermal methods.
