Question

what is the magnetic effect of the atmospheric pressure​

Answer 1

Answer:

Explan As an emerging source, atmospheric pressure nonthermal plasma jets (APNPJs) have held remarkable promise owing to its wide applications. At low pressure (~0.1 Pa), magnetic field i s always introduced into plasmas to affect the discharge current. However, little works have been reported on the interaction between magnetic field and atmospheric pressure plasmas. In this work, effect of magnetic field on the propagation of Ar APNPJs is investigated through a single-electrode configuration by use of AC power. In order to avoid the interference of the electric field by the permanent magnet, a same size iron is set in the electric field to replace the permanent magnet when there's no magnetic field. We compare the electrical characteristic with/without iron and with/without magnetic field. With the magnetic field, the discharge current is clearly increased, however, with and without the iron, the discharge current show slight difference. It is believed that the enhancement of ionization in the curved and lengthened electron path caused by Lorentz force is the main reason.

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Answer 2

Answer:

• Researchers have found that when magnetite is subjected to pressures between 120,000 and 160,000 times atmospheric pressure its magnetic strength declines by half. They discovered that the change is due to what is called electron spin pairing. ...

• Magnetism comes from unpaired electrons in magnetic materials.