A uniform magnetic field is one that has the same strength and direction at all points. A uniform magnetic field can be created by taking the opposite poles of two magnets and holding them close together.
What is mean by uniform magnetic field?
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.
Where is a uniform magnetic field?
In a uniform magnetic field, the field lines are parallel equidistant straight lines. Following are the properties of the magnetic field: The magnetic field lines do not cross over each other. The magnetic field lines are always in a closed-loop moving from the north pole to the south pole.
How can you explain uniform and non uniform magnetic field?
It is represented by convergent or divergent lines. So, Uniform magnetic field lines are starlight lines whereas non-uniform magnetic field lines are curved. Uniform magnetic field lines will be parallel to each other; non-uniform magnetic field lines are not parallel.
What is magnetic field and what is its source?
Magnetic fields are produced by electric currents, which can be macroscopic currents in wires, or microscopic currents associated with electrons in atomic orbits. The magnetic field B is defined in terms of force on moving charge in the Lorentz force law.
How do you produce a uniform magnetic field?
Creating a Uniform Field
- A uniform magnetic field is one that has the same strength and direction at all points.
- A uniform magnetic field can be created by taking the opposite poles of two magnets and holding them close together.
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.
How can you tell where the magnetic field is strongest?
The magnetic field of a bar magnet is strongest at either pole of the magnet. It is equally strong at the north pole when compared with the south pole. The force is weaker in the middle of the magnet and halfway between the pole and the center.
Where is the magnetic field the strongest?
The magnetic field is strongest at the center and weakest between the two poles just outside the bar magnet. The magnetic field lines are densest at the center and least dense between the two poles just outside the bar magnet.
How do you describe a magnetic field?
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetized materials. … Magnetic fields surround magnetized materials, and are created by electric currents such as those used in electromagnets, and by electric fields varying in time.
Why can’t two magnetic field lines cross each other?
Two magnetic field lines do not intersect each other because if there was point of intersection, The compass needle would point towards 2 directions. Which means that the magnetic field has two different directions, which is not possible.4 мая 2020 г.
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 an electromagnet is?
A solenoid with an iron core is called an electromagnet . The iron core increases the solenoid’s magnetic field strength. A simple electromagnet is made by coiling wire around an iron nail. Electromagnets are used in devices such as electric bells, and door locks that can be controlled remotely.
What causes a magnetic field?
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. Some substances can be magnetized by an electric current.
Where do magnetic fields come from?
Electric fields come from charges. So do magnetic fields, but from moving charges, or currents, which are simply a whole bunch of moving charges. In a permanent magnet, the magnetic field comes from the motion of the electrons inside the material, or, more precisely, from something called the electron spin.
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.