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 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 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 is a uniform magnetic field produced?
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.
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 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.
What does the Earth’s magnetic field protect us from?
Enveloping our planet and protecting us from the fury of the Sun is a giant bubble of magnetism called the magnetosphere. Without the magnetosphere, the relentless action of these solar particles could strip the Earth of its protective layers, which shield us from the Sun’s ultraviolet radiation. …
What is the largest possible magnitude of the force on the electron due to the magnetic field?
The maximum magnitude of the magnetic force acting on the electron when its velocity v is perpendicular to B is Fmag = evB. Details of the calculation: Fel = kee2/r2 = (9*109* (1.6*10-19)2/(0.53*10-10)2) N = 8.2*10-8 N.
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 the magnetic field in a solenoid?
A solenoid is a long coil of wire wrapped in many turns. When a current passes through it, it creates a nearly uniform magnetic field inside. Solenoids can convert electric current to mechanical action, and so are very commonly used as switches.
How do magnetic fields affect charged particles?
Magnetic forces can cause charged particles to move in circular or spiral paths. Particle accelerators keep protons following circular paths with magnetic force. … The magnetic force is perpendicular to the velocity, and so velocity changes in direction but not magnitude. Uniform circular motion results.
What is meant by magnetic field?
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic 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.
What is the magnetic effect of current?
The magnetic effect of electric current is known as electromagnetic effect. It is observed that when a compass is brought near a current carrying conductor the needle of compass gets deflected because of flow of electricity. This shows that electric current produces a magnetic effect.
Why are there no two magnetic field lines?
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.