Answer: The divergence (degree of closeness) of magnetic field lines near the ends of a current carrying straight solenoid indicates a decrease in the strength of the magnetic field near the ends of the solenoid.
Why are the field lines smaller near the current carrying wire?
The distance from the current carrying conductor and the magnetic field are inversely proportional. That is, as distance increases, magnetic field strength decreases.
What does the spacing of magnetic field lines mean?
In re-orienting the the iron filings, the magnet is applying a force. The new orientation of the iron filings shows the direction of the magnetic field around the magnet. … The intensity of the magnetic field is represented by the spacing of the magnetic field lines; a strong magnetic field has the lines close together.
Where magnetic field lines are close together?
Field lines are shown closer together where the magnetic field is greater.
Why can’t magnetic field lines cross?
Magnetic field lines can never cross, meaning that the field is unique at any point in space. Magnetic field lines are continuous, forming closed loops without beginning or end. They go from the north pole to the south pole.
How magnetic field is created?
Any current (movement of electrical charge) will create a magnetic field. Certain materials are capable of realigning the angular momentum of their electrons, and iron is one of them. When the angular momentum of electrons gets aligned, an external magnetic field is created.
Where is the strongest area of magnetism in the field?
Why do magnetic fields have lines?
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. … One useful analogy is the close connection between magnetic monopoles and electric charges.
What affects the strength of a magnetic field?
Factors Affecting the Strength of the Magnetic Field of an Electromagnet: Factors that affect the strength of electromagnets are the nature of the core material, strength of the current passing through the core, the number of turns of wire on the core and the shape and size of the core.
Which magnetic field is the 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.
What happens when magnetic fields overlap?
When magnets are close together, with their fields overlapping, the fields combine to produce a resultant field which acts in one direction at any given point. The point X is called a neutral point. The forces due to both magnets cancel each other, i.e. there is no net force, at X.
Why do magnetic lines of force move from north to south?
When it comes to magnets, opposites attract. This fact means that the north end of a magnet in a compass is attracted to the south magnetic pole, which lies close to the geographic north pole. Magnetic field lines outside of a permanent magnet always run from the north magnetic pole to the south magnetic pole.
Why can’t two lines of force cross each other?
Electric lines of force never intersect each other because, at the point of intersection, two tangents can be drawn to the two lines of force. This means two directions of the electric field at the point of intersection, which is not possible.
Do electric field lines really exist?
Electric field lines never intersect. In an uniform electric field, the field lines are straight, parallel and uniformly spaced. … If the electric field in a given region of space is zero, electric field lines do not exist. The tangent to a line at any point gives the direction of the electric field at the point.
Can magnets interact without touching?
Magnetic forces are non contact forces; they pull or push on objects without touching them. Magnets are only attracted to a few ‘magnetic’ metals and not all matter. Magnets are attracted to and repel other magnets.