What is a uniform magnetic field?
Uniform magnetic field
When magnetic field lines are the same distance apart from each other, we say that the magnetic field is uniform.
How does a current produce a magnetic field?
When a charged particle such as an electron moves, it produces a magnetic field. Because an electric current generally consists of moving electrons, a current in a wire produces a magnetic field. In fact, the wire acts as a magnet. … The direction of the current determines the direction of the magnetic field.
Does the human body generate a magnetic field?
In fact, every organ and cell in the human body has its own field. The magnetic field produces electrical currents that are weaker than you may first think. … This includes neurons, endocrine, and muscle cells – all called “excitable cells”. As all electricity does, this activity also creates a magnetic field.
Where is a uniform magnetic field?
A uniform magnetic field is a circumstance where the magnetic field lines are moving from North to the South Pole of a magnet with a uniform severance and they are peripatetic in a straight line, this is not probable to acquire with a single stable magnet.
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 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 least dense at the center and densest between the two poles just outside the bar magnet.
How can you detect a magnetic field?
Magnetic field lines can also be detected using a magnetic compass.
- A compass contains a small bar magnet on a pivot so that it can rotate.
- The compass needle points in the direction of the Earth’s magnetic field, or the magnetic field of a magnet.
- Magnetic fields can be mapped out using small plotting compasses:
Do charges at rest produces electric field?
A charged particle moving without acceleration produces an electric as well as a magnetic field. It produces an electric field because it’s a charge particle. But when it is at rest, it doesn’t produce a magnetic field. All of a sudden when it starts moving, it starts producing a magnetic field.
How can a magnetic field be produced without using a magnet?
Answer. When current passes through a wire or a conductor then it creates an electromagnetic field which this helps in creating magnetic field.
Can a magnetic field kill you?
Fields in excess of 109 Gauss, however, would be instantly lethal. Such fields strongly distort atoms, compressing atomic electron clouds into cigar shapes, with the long axis aligned with the field, thus rendering the chemistry of life impossible.
Do magnets affect the brain?
In TMS, a strong magnetic pulse induces tiny electrical currents in the affected brain tissue. These currents can activate nerve cells. In medicine, TMS is used to diagnose impairments of motor function such as in multiple sclerosis or as a result of a stroke.
How much magnetic field is safe for humans?
A continuous exposure limit of 40 mT is given for the general public. Static magnetic fields affect implanted metallic devices such as pacemakers present inside the body, and this could have direct adverse health consequences.
What are the 4 magnetic metals?
Magnetic metals include:
- Some alloys of rare earth metals.
Is the magnetic field of a bar magnet uniform?
Answer. They r not actually uniform they are bulging at the center where the magnetic fields are weak. And towards the pole they are close and dense as at the poles the magnetic fields are maximum.
What is a magnetic field diagram?
The magnetic field is described mathematically as a vector field. This vector field can be plotted directly as a set of many vectors drawn on a grid. Each vector points in the direction that a compass would point and has length dependent on the strength of the magnetic force.