# How does an electric current move in a magnetic field?

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A current traveling through a loop of wire creates a magnetic field along the axis of the loop. The direction of the field inside the loop can be found by curling the fingers of the right hand in the direction of the current through the loop; the thumb then points in the direction of the magnetic field.

## How does electricity move through a magnetic field?

Magnetic fields can be used to make electricity

Moving magnetic fields pull and push electrons. Metals such as copper and aluminum have electrons that are loosely held. Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current.

## How does a magnetic field and electric current interact?

The interactions between electric currents and magnetic fields create forces. The magnetic force on a current in a magnetic field = current x displacement across the magnetic field. … When two currents are directed through magnetic fields in the same direction, they attract.

## Why does moving a wire through a magnetic field create a current?

If a coil of wire is placed in a changing magnetic field, a current will be induced in the wire. This current flows because something is producing an electric field that forces the charges around the wire.

## How do electric and magnetic fields interact in an electromagnetic wave?

Electromagnetic waves are formed when an electric field (shown in red arrows) couples with a magnetic field (shown in blue arrows). Magnetic and electric fields of an electromagnetic wave are perpendicular to each other and to the direction of the wave.

## How do charged particles interact with magnetic fields?

A charged particle experiences a force when moving through a magnetic field. … Since the magnetic force is perpendicular to the direction of travel, a charged particle follows a curved path in a magnetic field. The particle continues to follow this curved path until it forms a complete circle.

## How do the magnetic and electrical components of electromagnetic waves travel?

Electromagnetic waves do NOT need a medium to travel through. What can electromagnetic waves travel through? -They can travel through a vacuum, empty space or a medium. … There was a direct relationship between the frequency of a wave and the energy it carries.

## Does changing magnetic field produce an electric field and a changing electric field produces a magnetic field?

Then they cannot be treated independently of each other, because the changing electric field produces a changing magnetic field and the newly produced changing magnetic field produces a changing electric field, which is an electromagnetic wave.

## Can magnetic fields induce electric current?

A current can be induced in a conducting loop if it is exposed to a changing magnetic field. … In other words, if the applied magnetic field is increasing, the current in the wire will flow in such a way that the magnetic field that it generates around the wire will decrease the applied magnetic field.

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## Can an electric field exist without a magnetic field?

Electric fields are generated around particles that bear electric charge. … Without the electric field, the magnetic field exists in permanent magnets and electric fields exist in the form of static electricity, in absence of the magnetic field.