चुम्बकीय-क्षेट्र इसके अंग्रेजी अर्थ का उदाहरण

Information about Earth's core mostly comes from analysis of seismic waves and Earth's magnetic field.

The magnetic field of the Earth.

In 2010, Bruce Buffett determined that the average magnetic field in the liquid outer core is about 2.

He observed that motion of the liquid through the local magnetic field creates electric currents, that dissipate energy as heat according to Ohm's law.

From the magnitude of the latter effect he could calculate the magnetic field.

Karato proposed that changes in the magnetic field might also deform the inner core slowly over time.

Finlay conjectured that this process could explain the asymmetry in the Earth's magnetic field.

This variation is surprising since lateral temperature variations along the inner-core boundary are known to be extremely small (this conclusion is confidently constrained by magnetic field observations).

This process creates convection currents in the outer core, which are thought to be the prime driver for the currents that create the Earth's magnetic field.

The existence of the inner core also affects the dynamic motions of liquid in the outer core, and thus may help fix the magnetic field.

The dynamics is complicated because of the currents and magnetic fields in the inner core.

Via the Higgs mechanism, these boson fields combine into the massless electromagnetic field A_\mu and the fields for the three massive vector bosons W^\pm and Z.

They are also sometimes used for the microphone on telephonists headsets and to provide music to patients undergoing an MRI scan, as it would be dangerous to use metal wiring in the scanner's magnetic field.