What happens when you put a molecule in a magnetic field?

Molecules react also upon application of a magnetic field, which changes the internal electric currents and modifies the local magnetic field. A nucleus may be treated as a small magnet, which reacts to the local magnetic field it encounters.

What causes electrons to move in a magnetic field?

All charged particles interact with electromagnetic fields via the Lorentz force. This interaction causes electrons in a magnetic field to move in a corkscrew pattern. According to classical physics, electrons should rotate about the magnetic-field direction with a single frequency, called the “cyclotron frequency”.

Does magnetic field perform work on an electron?

Here’s the key. As the loop starts to move the magnetic field that it makes moves too, i.e. it changes. But a changing magnetic field is always accompanied by an electric field, an “EMF”. That EMF does do work on electrons.

Why are magnetic materials attracted to magnets?

Ferromagnetic materials are attracted to magnets because their electrons spin and the resulting “magnetic moments” align easily, and retain that alignment even without an external magnetic field.

What happens to atoms when they are placed in a magnet?

Opposite poles are attracted to each other, while the same poles repel each other. When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction. The force generated by the aligned atoms creates a magnetic field. The piece of iron has become a magnet.

Why magnetic field created by flow of electrons is opposite in direction to flow of current?

The electric field direction within a circuit is by definition the direction that positive test charges are pushed. Thus, these negatively charged electrons move in the direction opposite the electric field.

How does a charged particle move in a magnetic field?

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 is the movement of electron in a conductor related to the formation of magnetic field?

Electromagnetism is produced when an electrical current flows through a simple conductor such as a length of wire or cable, and as current passes along the whole of the conductor then a magnetic field is created along the whole of the conductor.