Full Answer
What are magnetic lines of forces?
Magnetic Lines of Force is a an imaginary line representing the direction of magnetic field such that the tangent at any point is the direction of the field vector at that point.
What are magnetic lines of force 7?
Magnetic lines of force are the lines that depict the magnetic force that exists in the surrounding of the magnet. The properties of magnetic lines of force are as follows. Magnetic field lines emerge from the north pole and merge at the south pole.
What are magnetic field lines Class 10th?
Magnetic field lines are imaginary lines, which depict the strength and direction of the magnetic field.
In which instrument is magnetic force used?
Measurement. An instrument used to measure the local magnetic field is known as a magnetometer.
What is magnetic field class 7th?
(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 of a magnet class 6?
Answer: Solution: The space around the magnet where its influence can be experienced is known as magnetic field. This field is formed by the magnetic lines of force which run from the north pole to south pole.
How do you draw a magnetic line of force?
0:312:00Plotting Magnetic Field Lines GCSE Physics Required Practical - YouTubeYouTubeStart of suggested clipEnd of suggested clipAfter two first plots move to compass. So that's the back of the needle lines up with the dot.MoreAfter two first plots move to compass. So that's the back of the needle lines up with the dot. Repeat this until you reach the end of the magnet. Join the points together to show a field line.
How do you draw a bar magnet?
0:162:07To draw magnetic field lines due to a bar magnet - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd draw a line connecting the ends of the pointer. Using a lead pencil parallel to the length ofMoreAnd draw a line connecting the ends of the pointer. Using a lead pencil parallel to the length of the board. Paper place the magnet. Such that the line divides the magnet equally into two parts.
What is magnetic field in simple words?
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.
Which instrument is used to detect the magnetic field lines?
A magnetometer is a device that measures magnetic field or magnetic dipole moment. Different types of magnetometers measure the direction, strength, or relative change of a magnetic field at a particular location.
Which of the following instrument can be using magnetic effect?
Detailed SolutionTypeEffectWork asInduction TypeElectro-Magnetic InductionAmmeter, Voltmeter, Wattmeter, Energy MeterHot Wire (Thermocouple)Thermal EffectAmmeter, VoltmeterFlux MeterHall EffectMagnetic fields MeterElectrostatics MeterElectrostatics EffectVoltmeter3 more rows
What is magnetic equipment?
Definition. Magnetic devices are components for creating, manipulating or detecting magnetic fields. This can include magnetic memories, magnetometers and devices for magneto-optics.
Is a magnetic lines of force always a straight line?
False is it. Magnetic lines are not always straight.
How is magnetic line of force measured?
0:272:02Mapping of magnetic lines of force - Elementary Science - YouTubeYouTubeStart of suggested clipEnd of suggested clipBy using a compass place a plotting compass near the bar magnet. With a pencil mark the direction ofMoreBy using a compass place a plotting compass near the bar magnet. With a pencil mark the direction of the north pole of the plotting compass say p1.
Can you see magnetic lines of force?
Magnetic fields are everywhere– you just can't see them*. Here we introduce some basic and inexpensive visual tools, as varied as iron filings and Arduino, pre-school toys and OpenGL, for getting to know your local fields.
Is magnetic lines of force are always closed?
Magnetic lines form continuous closed loops because magnetic monopole does not exist in nature. We always find magnetic poles - North and South pole which are coupled together in such a way that field lines originating from one pole ends at the another loop, forming a closed loop.
What is the meaning of magnetic lines of force?
Magnetic lines of force are essentially three-dimensional meaning their effects can be felt in 3D space (along the x, y, and z axes).
What is a magnetic line?
Magnetic lines of force are a representation of the magnetic field which is the area surrounding the magnet where the magnetic force exerted by it is felt (by ferromagnetic substances, for example).
Why does metal move away from a magnet?
Hence, the movement of the metal either towards the magnet or away from it is due to it being inside the magnetic field of the magnet. This magnetic field is represented by imaginary lines that originate from the North Pole of the magnet and travel in an elliptical fashion towards its south pole where they ‘merge’ back into the magnet; magnetic lines of force are simply drawn to visualize a magnet’s force field that exists around it. Check the diagram below for a clearer representation.
Which direction do magnetic field lines move?
The direction of magnetic field lines as they move from the North pole to the South pole is dependent on their ability to track the path that presents the least resistance.
Do magnets have a force field?
Firstly, we shall define Magnetic Lines of Force and understand what they are. As you know , magnets have a force field around them; this is the reason whenever we bring a magnet near a piece of metal, the latter either gets attracted to the magnet or is repelled away.
Is the strength of magnetic lines of force inversely proportional to the distance from the poles?
The strength of magnetic lines of force (or simply, the magnetic field) is inversely proportional to their distance from the poles.
What is the name of the line of force that shows the magnetic field?
In order to picture the magnetic field and its strength at different distances from the poles, it is convenie12341 to show the field as lines of force, generally known as magnetic lines of force . These lines have no physical existence and are only a means of representing magnetic field.
What are the properties of magnetic lines of force?
The magnetic lines of force have the following properties: (i) From each point on the North Pole of a bar magnet a line of force is supposed to start and after passing the space it is supposed to end finally on a corresponding point on the South Pole. Inside the magnet the direction of the lines of force is from South Pole to North Pole.
How can magnetic field be judged?
Although the magnetic influence itself is entirely invisible, its existence and strength can be judged by such lines of force which indicate the direction in which the magnetic influence is acting, and the intensity of the field at any point is given by the density of these lines of force at that point.
What does it mean when two lines of force cross each other?
If two lines of force cross each other, it means two directions of a force at a point. This is impossible. (iv) The tendency of a magnetic line of force is to take the path of least reluctance. If a piece of iron is placed in the magnetic field, most of the lines of force will pass through the iron piece.
Where is the magnetic field of a bar magnet?
Fig. 50 (a) shows the magnetic lines of force of a bar magnet. The direction of each line of force is from North Pole to South Pole outside the magnet and from South Pole to North Pole inside the magnet. Near the poles of the magnet where the field is strongest, the lines are dense, but farther away from the poles the lines are less crowded showing lesser field strength.
What is magnetic field line?
Magnetic Field Lines. The magnetic field is an abstract entity that describes the influence of magnetic forces in a region. Magnetic field lines are a visual tool used to represent magnetic fields. They describe the direction of the magnetic force on a north monopole at any given position.
How to draw field lines for two dipoles?
To generate the field lines for two adjacent dipoles, draw the field lines for each individual bar magnet and then superimpose them . The field lines that are very close to either bar magnet, and far from the other, will be largely the same as they are in the isolated case. This is because the field from the other magnet is weak at far distances and can't significantly distort the local field. In between the two magnets, the story is different. Both fields are of comparable strength in this region and north monopoles will tend to travel from the north pole in the magnet on the right toward the south pole of the magnet on the left. Thus, the field will be more or less horizontal in this region.
How to find the magnetic field of a toroid?
The direction of the magnetic field within a toroid can be easily found by the right hand rule. Grasp the toroid with the fingers of your right hand curled in the direction of the current in the windings. Then the thumb points in the direction of the magnetic field. Two wires:
What are monopoles in science?
Monopoles are (as yet) theoretical objects that have either a north, or a south pole. Another way to imagine these is as magnetic charges, analogous to protons and electrons. Their existence is disputed, although there is some evidence that they can be artificially synthesized. Nevertheless, they are useful tools for thinking about magnetic field lines and to otherwise conceptualize ideas about magnetism. Note that monopoles reduce magnetic phenomena to their electrostatic analogue. We can say that the magnetic field lines emerge out of north poles and converge at south poles.
Why is a compass useful?
The compass is therefore useful to find the local direction of the magnetic field. Since Earth has a simple field with the North pole roughly aligned with true north, the compass is a most reliable tool for navigating the globe. However, if a local magnetic field dwarfs the strength of Earth's magnetic field, the needle will no longer give information about the Earth's field. It can thus be used to map out the magnetic field lines of an electrical device in the lab.
Which direction does the north pole move?
When placed in a magnetic field, the north pole tends to move in the direction that a north monopole would, and likewise for the south pole. Clearly, this motion is highly constrained and stops once the needle is aligned with the local magnetic field.
Which direction do electrons move in a magnetic field?
By applying the right hand rule, we come to the conclusion that the direction of the magnetic field is clockwise in a plane perpendicular to the wire, when viewed from east, and anti clockwise when viewed from the west end.#N#□#N#_square □#N#
What is the purpose of magnetic lines of force?
Magnetic lines of force are used to represent a magnetic field. Faraday introduced the idea of flux lines to simplify the analysis of magnetic fields. One must remember that the field is continuous and exists between, as well as along, the lines of force.
What determines the strength of a magnetic field?
The strength of the magnetic field mainly depends upon the value of current and distance from the current carrying conductor.
What is the effect of current flowing through a wire?
When current flows in a wire, it creates a magnetic effect around the wire which is called magnetic field. The magnetic field is specified by a direction as well as a magnitude.
Do unlike poles attract like poles?
From these observations, we may conclude that unlike poles attract and like poles repel. The force of attraction or repulsion between magnets varies directly with the product of their strengths and inversely with the square of the distance between them .
What are Magnetic Field Lines?
Magnetic Field lines are imaginary lines along which North Magnetic Pole would move.
How to draw a magnetic field?
How to Draw Magnetic Field with Help of Magnetic Compass and Bar Magnet 1 Let's take a compass and a bar magnet 2 But the compass near the north pole of the magnet 3 Mark a dot where the compass needle points, mark point as point B 4 Now put the other end of compass near point B 5 Mark point where the compass needle points as point C 6 Similarly, keep plotting until you reach the South Pole 7 Now, join the points
What happens if you bring iron closer to a magnet?
But if we bring iron closer and closer,there would come a point when magnet is able to attract the iron. Magnetic field is the region in which the magnets show their properties.
How is magnetic strength shown?
This Magnetic Strength is shown by degree of closeness of field lines to each other
Where is the strongest magnetic field?
Hence, magnetic field is strongest at the poles.
Do field lines cross each other?
Field Lines do not cross each Other. All Field lines follow their separate path to reach from North Pole to South Pole. One field Line do not intersect or merge with Other Field Line. There is no point of intersection of 2 Field lines. If there was point of intersection, compass needle would point towards 2 directions.
Who first proposed the line of force?
“Lines of force” is a concept first introduced by the great experimental physicist, Michael Faraday (1791-1867). Later, James Clerk Maxwell gave mathematical expression to Faraday’s concept. These physicists saw the lines of iron filings as indicative of an underlying “magnetic fluid.” “Fluid” is used here in the technical sense of a substance that takes the shape of its container, either a liquid or a gas. However, Faraday and Maxwell did not know what the physical nature of this fluid might be.
Is the magnetic field the line of force?
The lines of force are not the magnetic field, itself. The lines of force only reveal the underlying magnetic field. This idea is similar to the idea of physical manifestations making visible an underlying emotion like anger. The physical manifestations might be the person shouting and their face turning red. But these are merely indicators of the chemical changes occurring within their body and their raging subjective experience of “feeling angry.”
Magnetic Lines of Force
- Firstly, we shall define Magnetic Lines of Force and understand what they are. As you know, magnets have a force field around them; this is the reason whenever we bring a magnet near a piece of metal, the latter either gets attracted to the magnet or is repelled away. Hence, the movement of the metal either towards the magnet or away from it is due to it being inside the m…
Properties of Magnetic Lines of Force
- Now that the JEE Exam Datesare announced, it is important that the important topics such as these are read in detail. When studying the Magnetic Lines of Force, it is essential to know about their properties. Hence, here are some properties of magnetic lines of force: 1. Magnetic lines of force are essentially three-dimensional meaning their effects can be felt in 3D space (along the …
Magnetic Lines of Force Notes
- Magnetic flux density is also known as flux density as well as magnetic induction. All three terms have the same unit which is Wb/m^2 or Tesla (T).
- Magnetic lines of force are a representation of the magnetic field which is the area surrounding the magnet where the magnetic force exerted by it is felt (by ferromagnetic substances, for example).
- Magnetic flux density is also known as flux density as well as magnetic induction. All three terms have the same unit which is Wb/m^2 or Tesla (T).
- Magnetic lines of force are a representation of the magnetic field which is the area surrounding the magnet where the magnetic force exerted by it is felt (by ferromagnetic substances, for example).
- The magnetic field is a vector quantity because from the North pole of the magnet to its South pole; finding the tangent of any point that lies on any of the magnetic lines of force gives us the di...
- The magnetic field is measured as Magnetic Flux Density (or simply flux density) and its SI unit is Tesla (T); 1 Tesla (T) = 1 Weber/m^2 (Wb/m^2).
