Relationship between electric current magnetic field

Magnetic field - Wikipedia

relationship between electric current magnetic field

Magnetic Fields A magnetic field is a region in which a particle with magnetic properties experiences a Relationship Between Current and Magnetic Field. The magnetic field lines around a long wire which carries an electric current form concentric circles around the wire. The direction of the magnetic field is perpendicular to the wire and is in the direction the Magnetic force between wires. A wire carrying electric current will produce a magnetic field with closed field lines current, and θ is the angle between the current direction and the magnetic field. .. Magnetic Field: A schematic illustrating the relationship between motion of.

Static electricity occurs due to the existence of charged particles. On the other hand, when charged particles flow through the conductor, it is called current electricity.

Electric current and magnetic field

Because, when the charged particles flow through the conductor, electricity also flows. We know that current means the flow of anything in a particular direction. For example, the flow of water in a particular direction is called water current.

relationship between electric current magnetic field

In the similar way, the flow of electricity or charged particles especially free electrons in a particular direction is called current electricity or electric current.

Magnetism is a type of attractive or repulsive force that acts up to certain distance.

difference between electric and magnetic field in English

The distance up to which this attractive or repulsive force acts is called magnetic field. Magnetism is caused by the moving electric charges especially electrons. When two magnetic materials are placed close to each other, they experience an attractive or repulsive force. A French scientist named Andre-Marie Ampere studied the relationship between electricity and magnetism.

He discovered that magnetic fields are produced by moving charges current.

relationship between electric current magnetic field

And moving charges are affected by magnets. Stationary charges, on the other hand, do not produce magnetic fields, and are not affected by magnets. Electricity & Magnetism: Magnetic Fields

Two wires, with current flowing, when placed next to each other, may attract or repel like two magnets. It all has to do with moving charges. Earth's Magnetic Field Magnets are simple examples of natural magnetic fields. The Earth has a huge magnetic field.

relationship between electric current magnetic field

Because the core of our planet is filled with molten iron Fethere is a large field that protects the Earth from space radiation and particles such as the solar wind. When you look at tiny magnets, they are working in a similar way. The magnet has a field around it. As noted earlier, current in wires produces a magnetic effect.

relationship between electric current magnetic field

Therefore, under all circumstances, as noted above, an electric field that is changing with time surrounds itself with a magnetic field. Previously, it was thought that the only current that produced a magnetic field was the current in a conductor. Now Maxwell predicted that a magnetic field would also arise from a changing electric field, even in empty space.

Unfortunately, this field was very small in comparison to the magnetic field produced by the current in the conductors of the apparatus. So it was not at that time possible to measure it directly. But Maxwell predicted consequences that soon could be tested.

An electric current in a conductor produces magnetic lines of force that circle the conductor.

The necessary connection between electric and magnetic fields

When a conductor moves across externally set-up magnetic lines of force, a current is induced in the conductor. A changing electric field in space produces a magnetic field.

For instance, consider a pair of conducting plates connected to a source of current. Charges are moved onto or away from plates through the conductors connecting them to the source.

relationship between electric current magnetic field

Thus, the strength of the electric field in the space between the plates changes with time. This changing electric field produces a magnetic field. A changing magnetic field in space produces an electric field.

In this case we can consider the changing magnetic field produced by temporarily increasing the current in an electromagnet.