What is an magnetic field in physics?
The magnetic field is the area around a magnet in which the effect of magnetism is felt. We use the magnetic field as a tool to describe how the magnetic force is distributed in the space around and within something magnetic in nature.
Is magnetic field class 10th?
The area around a magnet where the influence of a magnet can be experienced is called magnetic fields. It has both magnitude and direction and the magnetic field and its field and direction are represented by magnetic lines of force.
What is magnetic field 12th class?
Magnetic Field: Magnetic Field is defined as the space around a magnet (or a current-carrying conductor) in which its magnetic effect can be experienced. The magnetic field in a region is said to be uniform if the magnitude of its strength and direction is the same at all points in that region.
What is a magnetic field GCSE physics?
A magnetic field is the region around a magnet where a force acts on another magnet or on a magnetic material.
What is magnetic field in simple words?
noun. a region of space near a magnet, electric current, or moving charged particle in which a magnetic force acts on any other magnet, electric current, or moving charged particle.
What is a magnetic field called?
Around a permanent magnet or a wire carrying a steady electric current in one direction, the magnetic field is stationary and referred to as a magnetostatic field. At any given point its magnitude and direction remain the same.
What is a magnetic field Class 7?
(c) Magnetic field is defined as the region around a magnet where the magnetic force can be experience by an object. Magnetic field lines are the geometrical representation of magnetic field.
What is magnetic field Class 10 Ncert?
Magnetic field: The area around a magnet where a magnetic force is experienced is called the magnetic field. It is a quantity that has both direction and magnitude, (i.e., Vector quantity). Magnetic field and field lines: The influence of force surrounding a magnet is called magnetic field.
What is a magnetic field ks3?
A magnet creates a magnetic field around it. You cannot see a magnetic field, but you can observe its effects. A force is exerted on a magnetic material brought into a magnetic field. The force is a non-contact force because the magnet and the material do not have to touch each other.
What are magnetic field lines GCSE?
Magnets create magnetic fields. These magnetic fields cannot be seen. They fill the space around a magnet where the magnetic forces work, and where they can attract or repel magnetic materials.
What causes magnetic field?
All magnets have north and south poles. 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.
What is a magnetic field easy definition?
Definition of magnetic field : the portion of space near a magnetic body or a current-carrying body in which the magnetic forces due to the body or current can be detected.
What is magnetic field with answer Class 7?
The region around a magnet where the magnetic force acts on an object is called a magnetic field. The magnetic field around a magnet can be shown by means of magnetic lines of force. The intensity of the magnetic field can be obtained from the number of lines of force.
What is a magnetic field Simple?
The magnetic field is the area around a magnet in which there is magnetic force. Moving electric charges can make magnetic fields. Magnetic fields can be illustrated by magnetic flux lines. At all times the direction of the magnetic field is shown by the direction of the magnetic flux lines.
What is magnetic field Class 10 answer?
Answer: Properties of magnetic lines of force : The magnetic field lines originate from the north pole of a magnet and end at its south pole. The magnetic field lines become closer to each other near the poles of a magnet but they are widely separated at other places.
What is magnetic effect class 10th?
Let us look at the History & Explanation of Magnetic Effect of Electric Current Class 10. In 1820 the theory of the magnetic effect of electric current was discovered by H.C Oersted. This concept actually means that the flow of an electric current through a conductor produces a magnetic field around it.
How do you explain magnetic force to a child?
Magnetism is the force of attraction or repulsion between substances made of certain materials, such as iron, nickel, cobalt, and steel. The force of magnetism, simply put, is due to the motion of electric charges. Magnets are present in most electronic devices. In fact, anything that has a motor uses a magnet.
What causes a magnetic field to change?
Since the forces that generate our magnetic field are constantly changing, the field itself is also in continual flux, its strength waxing and waning over time. This causes the location of Earth’s magnetic north and south poles to gradually shift, and to even completely flip locations every 300,000 years or so.
How does a magnetic field work?
What is a magnetic field in physics?
These magnetic fields break so-called time-reversal symmetry, a type of symmetry that means that the laws of physics are the same whether you look at a system going forward or backward in time. A natural explanation of the occurrence of time-reversal
What is a magnetic field?
These fields can play a critical role either in supporting the gas and dust against gravitational collapse into new stars, or alternatively, in assisting the flow of mass along the bone into cores making new stars. Magnetic fields are notoriously difficult to measure in space.
What is the equation for magnetic field?
We have chosen a path with constant radius, so the magnetic field at every point on the path is the same: B = . In addition, the total length of the path is simply the circumference of the circle: l = 2Πr. Thus, because the field is constant on the path, the line integral is simply: This equation, called Ampere’s Law, is quite convenient.
What are magnetic field lines?
Pumping the field to 25 Tesla prompted the sample to Zeeman splitting, in which spectral lines separate like light through a prism but in a magnetic field, a critical feature in nuclear magnetic resonance devices. The lines also exhibited an overall shift