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Magnetic fields are produced because of moving electric charges, and visualizing the very complex mathematical relationships that fall under the magnetic field might become much easier if magnetic field lines were used. A higher density of field lines means a stronger magnetic field. Keep in mind that those lines do not actually exist; they are drawn only to visualize the strength of the magnetic field.
What else can I help you with?
Choose the best description of a magnetic field line AMagnetic field lines always point north BA magnetic field line shows the direction a compass needle would point CMagnetic field lines?
From that list, I'll have to go with 'B'.
What law would be best suited for finding the magnetic field inside a current-carrying coaxial cable?
You would use Amperes circuital law, which was discovered and named after Andre-Marie Ampere.
What best describes void in javascript?
An operator
How do you increase the magnetic field in a coil?
Magnetism requires mass of some sort. Smaller magnet, smaller field. I would think that the same holds true with the wire. In the field of electromagnetism you will be dealing with a power requirement to achieve desired strength of field. So, to give you my best answer to your question is to increase the electrical input. If the wire is already magnetic, get a thicker diameter magnetic wire.
Why will or won't a transformer operate on DC?
Let's look at a transformer first. Transformers are essentially two coils that are wrapped (wound) around a common core. The primary is supplied with a changing voltage. This develops a changing magnetic field in the core. And this changing magnetic field in the core "sweeps" the secondary windings and generates a voltage in those secondary windings. The changes in the primary due to the changing voltage are inductively coupled into the secondary to generate voltage there. The general answer to why a transformer doesn't work on a DC supply is that a DC voltage doesn't "change" and cause changes in the magnetic field in the core, and, thereby, cause changes in the voltage in the secondary windings. When we "turn on" the DC (direct current), a field will be built in the core, it will sweep the secondary windings and deliver a "pulse" as the field is built. But then the secondary voltage will drop to zero after the pulse. This is because there is a static magnetic field around the secondary windings, and a static field will not sweep the windings and generate a voltage. There will be no secondary voltage. It is possible to generate pulses of voltage in a transformer by pulsing a DC voltage supplied to the primary. The ignition coil in an automobile works in this way. The 12-volt supply is pulsed to the coil to generate the high voltage to fire the spark plugs. It is possible to get a transformer to work on DC. But, in general, transformers need a dynamically changing voltage supplied to them to cause the changing magnetic field in the core. This changing magnetic field will sweep the secondary windings and generate a changing voltage there. AC (alternating current) works really well for this application, and we use this idea in the power grids around the world.
What best describes earths south magnetic field?
Earth's south magnetic field is a region near the geographic South Pole where the magnetic field lines are directed towards the Earth's core. It plays a crucial role in guiding compass needles and protecting the planet from solar wind. This field also influences the auroras in the Southern Hemisphere.
What terms best describes the space surrounding a magnet in which the magnetic forces acts.?
The space surrounding a magnet in which the magnetic force acts is called a magnetic field. The magnetic field is the region where magnetic forces are generated and can influence other magnetic materials or moving charges.
Choose the best description of a magnetic field line A Magnetic field lines for a bar magnet are parallel to the magnet B A magnetic field line shows the direction a compass needle would?
B. A magnetic field line shows the direction a compass needle would align in a magnetic field.
Choose the best description of a magnetic field line AMagnetic field lines always point north BA magnetic field line shows the direction a compass needle would point CMagnetic field lines?
From that list, I'll have to go with 'B'.
Which best describes earth south magnetic pole?
Moving
What is the best term that describes the space surrounding a magnet in which the magnet force acts?
The best term to describe the space surrounding a magnet in which the magnet force acts is "magnetic field." The magnetic field is a region around a magnet where magnetic forces are exerted on other magnets or magnetic materials.
What equation best describes the induced emf due to the movement of a rod in a magnetic field?
The equation that best describes the induced emf due to the movement of a rod in a magnetic field is given by Faraday's Law of Electromagnetic Induction, which states that the induced emf () is equal to the rate of change of magnetic flux () through the loop formed by the rod. Mathematically, it can be expressed as -d/dt.
Best description of a magnetic field line?
A magnetic field line is an imaginary line that represents the direction a magnetic compass would point when placed at any point in space. The lines form closed loops around a magnet or current-carrying wire, flowing from the north pole to the south pole in a continuous path. The density of field lines indicates the strength of the magnetic field.
Choose the best description of a magnetic field line.?
A magnetic field line shows the direction a compass needle would point.
Why does the soft iron core increases the strength of magnetic field?
Iron core (usually soft iron core) is a highly ferromagnetic material. Ferromagnetic materials allows (and attracts) the magnetic field lines to pass through it. When such a material is used in the electromagnet, the magnetic field lines passing through it increases, thereby, the strength of the electromagnet increases. So my friend, I hope you are satisfied with the answer.
Which best describes search north magnetic pole?
In our solar system has magnetic pole reversal
What word best describes the type of materials that attraction?
magnetic
