# Frequent question: What current produces a magnetic field?

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Electric current produces a magnetic field. This magnetic field can be visualized as a pattern of circular field lines surrounding a wire. One way to explore the direction of a magnetic field is with a compass, as shown by a long straight current-carrying wire in.

## How magnetic field is produced by current?

As Ampere suggested, a magnetic field is produced whenever an electrical charge is in motion. The spinning and orbiting of the nucleus of an atom produces a magnetic field as does electrical current flowing through a wire. The direction of the spin and orbit determine the direction of the magnetic field.

## What produces a magnetic field?

Magnetic fields are produced by moving electric charges and the intrinsic magnetic moments of elementary particles associated with a fundamental quantum property, their spin.

## Does steady current produces magnetic field?

The magnetic field produced by a steady current flowing in a very long straight wire encircles the wire. At a point P a radial distance r away from the wire it has magnitude B = μ0I/(2πr). The direction of B is given by the right-hand rule. Let your thumb point into the direction of the current flow.

## Does DC current produce magnetic field?

Yes, direct currents (DC) produce magnetic fields. DC is considered a static current that only moves in one direction.

## What produces a magnetic field quizlet?

What produces a magnetic field? Electric charges in motion. Charged particles in motion have both an electric field and magnetic field associated with them. Charge is surrounded by magnetic field if it is moving.

## Is the Earth’s core magnetic?

The core of the Earth is also an electromagnet. Although the crust is solid, the core of the Earth is surrounded by a mixture of molten iron and nickle. The magnetic field of Earth is caused by currents of electricity that flow in the molten core.

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## Which is stronger magnetic field or electric field?

The way in which charges and currents interact with the electromagnetic field is described by Maxwell’s equations and the Lorentz force law. The force created by the electric field is much stronger than the force created by the magnetic field.

## Does current produce electric field?

Yes, an electric current =does= produce an electric field. This is due to relativity, specifically the Lorentz Contraction. … But then we’d have to differentiate between a static electromagnetic force (electric field) and a moving electromagnetic force (magnetic field).

## Does current carrying conductor produces electric field?

The electric field inside a current carrying conductor is zero be because the charges are distributed on the surface of the conductor. But, magnetic field is created around the current carrying conductor. The moving charges create a magnetic field around the conductor.

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## What is steady magnetic field?

Steady magnetic fields are produced by steady currents. The main objective of this chapter is to provide detailed concepts of magnetostatics. They include: Faraday’s induction law, Biot-Savart law, Ampere’s circuit law, Ampere’s force laws for current elements. …

## Can you direct a magnetic field?

Yes, it is possible to guide magnetic field lines using a shaped magnetic material. Just as field lines concentrate when entering the south pole of a magnet from a large area, an external magnetic field can be “gathered” using, for example, a cone-shaped piece of iron.

## What is a dc magnetic field?

A Direct Current (DC) electromagnetic field refers to a constant or static DC electric or DC magnetic field emission which has a frequency of 0 Hz. … DC magnetic fields can also be created from a DC power source of electricity such as battery power, solar power and wind power.15 мая 2019 г.

## Is induced current AC or DC?

In electromagnetic induction, the induced current is A.C. (as it is created due to the change in magnetic flux) though with special apparatus or arrangement this A.C. current can be changed into D.C.