A uniform magnetic field is represented by equally spaced parallel straight lines. The direction of the flux is the direction in which the north-seeking pole of a small magnet points.
What does a uniform magnetic field mean?
A uniform magnetic field is a magnetic field that has the same magnitude and direction throughout the region under consideration, thus the field lines need to be both parallel and spaced out evenly.
What are uniform and non uniform magnetic field how can they be represented?
It is represented by drawing parallel lines (Figure). An example of the uniform magnetic field over a wide area is the Earth’s magnetic field. … Non-uniform Magnetic Field: If the magnetic induction varies in magnitude and direction at different points in a region, the magnetic field is said to be non-uniform.
Is magnetic field lines uniform?
Magnetic field lines are closed continuos curves. No 2 magnetic lines intersect each other. Magnetic field is uniform if its magnitude is equal and direction is same at every point in space. Magnetic fields is non-uniform if its magnitude is not equal and direction is not same every point in space.
What is the purpose of a magnetic field?
Magnetic fields force moving electrically charged particles in a circular or helical path. This force—exerted on electric currents in wires in a magnetic field—underlies the operation of electric motors. (For more information about magnetic fields, see magnetism. The use of magnetic fields to generate electric current.
What are magnetic fields and their influence?
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. … The effects of magnetic fields are commonly seen in permanent magnets, which pull on ferromagnetic materials such as iron, and attract or repel other magnets.
What do you mean by non uniform magnetic field?
Non uniform magnet :- The magnetic field in a region is non uniform if it has different magnetic intensities at different points in the region. Smenevacuundacy and 6 more users found this answer helpful.
What is non uniform electric field?
If an electric field has the same magnitude and same direction everywhere in a given space then this electric field is uniform, and if either the magnitude or direction or both change then it is a non-uniform electric field in that specified space.
What is the difference between uniform and non uniform magnetic field?
Uniform magnetic field lines will be parallel to each other, non uniform magnetic field lines are not parallel. Number of field lines per unit area does not changes with position for uniform magnetic field, but the no of field line per unit area is position dependent for non uniform field line.
Where do we find a uniform magnetic field?
When magnetic field lines are parallel then magnetic force experienced by an object is same at all points in that field and such a field is called uniform magnetic field. For example a bar magnet’s strength is greater at its poles[non uniform] however inside a solenoid the magnetic field lines are parallel.
What is necessary to have a magnetic field?
If you have a rotating electric current, it will create a magnetic field. On Earth, flowing of liquid metal in the outer core of the planet generates electric currents. The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet.1 мая 2017 г.
Where is the magnetic field most nearly uniform?
Outside a bar magnet the field lines close the loop, from north to south. The density of the field lines is proportional to the strength of the magnetic field. When a bar magnet is bend into the shape of a horseshoe, the magnetic field between the poles is nearly uniform and usually quite strong.
How magnetic field is created?
Any current (movement of electrical charge) will create a magnetic field. Certain materials are capable of realigning the angular momentum of their electrons, and iron is one of them. When the angular momentum of electrons gets aligned, an external magnetic field is created.
Does human body have magnetic field?
The body’s magnetic fields are very weak, and are measured with the sensitive detector called a SQUID (superconducting quantum interference device), usually in a magnetically shielded room, which excludes most external disturbances.
Is Earth losing its magnetic field?
According to the data given by the ESA, the magnetic field has lost nearly nine per cent of its strength on a global average in the last 200 years. This year, the “minimum field strength” in the South Atlantic Anomaly has seen a drop of around 24,000 nanoteslas to 22,000 from its strength in 1970.25 мая 2020 г.