تعريف magnetic field في الإنجليزية الإنجليزية القاموس.
a condition in the space around a magnet or electric current in which there is a detectable magnetic force and two magnetic poles are present
A force field whose direction can be visualized with a bar magnet and iron filings A magnetic field can be created by a "permanent" magnet or by electric currents Charged particles can move freely along magnetic fields, but may circulate around them rather than crossing them
A force field generated by moving electrical charges An electrical current running through a loop of wire generates a magnetic field The strength of the field depends on the current and area of the wire loop Plasma churning through the atmosphere of the Sun drives powerful magnetic fields that sometimes produce cool magnetic storms called sunspots A magnetic dynamo underneath Earth's crust generates a magnetic field around Earth
area of influence of a magnet, magnetic power of a unit of a freight to a unit of speed
The region of space around a magnet or electric current where there is a force on magnetic materials
(H) - the region surrounding a magnet (or current carrying conductor) is endowed with certain properties One is that a small magnet in such a region experiences a torque that tends to align it in a given direction Magnetic field is a vector quantity; the direction of the field is defined as the direction that the north pole of the small magnet points when in equilibrium A magnetic field produces a magnetizing force on a body within it Formally, the forces experienced by moving charged particles, current carrying wires, and small magnets in the vicinity of a magnet are due to magnetic induction (B), which includes the effect of magnetization, while the magnetic field (H) is defined so as not to include magnetization However, both B and H are often loosely used to denote magnetic fields
The region of space near a magnetized body, in which magnetic forces are exerted
1 A region of space wherein any magnetic dipole would experience a magnetic force or torque; often represented as the geometric array of the imaginary magnetic lines of force that exist in relation to magnetic poles
A magnetic field is an area around a magnet, or something functioning as a magnet, in which the magnet's power to attract things is felt. A condition found in the region around a magnet or an electric current, characterized by the existence of a detectable magnetic force at every point in the region and by the existence of magnetic poles. an area around an object that has magnetic power. Region around a magnet, electric current, or changing electric field in which magnetic forces are observable. The field around a permanent magnet or wire carrying a steady direct current is stationary, while that around an alternating current or changing direct current is continuously changing. Magnetic fields are commonly represented by continuous lines of force, or magnetic flux, that emerge from north-seeking magnetic poles and enter south-seeking poles. The density of the lines indicates the magnitude of the field, the lines being crowded together where the magnetic field is strong. The SI unit for magnetic flux is the weber
A field of force around the Sun and the planets, generated by electrical currents, in which a magnetic influence is felt by other currents The Sun's magnetic field, like that of Earth, exhibits a north and south pole linked by lines of magnetic force See also: The Plasma State of Matter See also: Plasma, the Fourth State of Matter
The region of space near a magnetized body within which magnetic forces can be detected
The invisible lines of magnetic force produced by electric current flowing in a conductor, such as a transmission line, service wires in a house, or household appliances Measured in terms of lines of force per unit area with the measurement unit being tesla (T) or gauss (G) (one tesla equals 10,000 gauss) Also see electric and magnetic fields
A condition found in the region around a magnet or an electric current, characterized by the existence of a detectable magnetic force at every point in the region and by the existence of magnetic poles
A field of force that is generated by electric currents The Sun's average large-scale magnetic field, like that of the Earth, exhibits a north and a south pole linked by lines of magnetic force more!
Magnetic fields are historically described in terms of their effect on electric charges A moving electric charge, such as an electron, will accelerate in the presence of a magnetic field, causing it to change velocity and its direction of travel An electrically charged particle moving in a magnetic field will experience a force (known as the Lorentz force) pushing it in a direction perpendicular to the magnetic field and the direction of motion Also called magnetic flux
All magnetic fields are created by moving electric charge The single moving electron around a nucleus is a tiny electric current These orbiting electrons create magnetic fields and their net effect is to provide the atom with a magnetic field
A region of space that surrounds a moving electrical charge or a magnetic pole, in which the electrical charge or magnetic pole experiences a force that is above the electrostatic ones associated with particles at rest
a region in which magnetic forces can be observed See "electromagnetic field," a more general field also including electric forces
n an unseen field of magnetic force; the field of magnetic force that encompasses the earth and creates the magnetic poles