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Wooden core electromagnet vs iron core electromagnet?
A coil of wire or a coil in the shape of a cylinder is a typical shape for an electromagnet. The strength of the magnetic field of an electromagnet can be increased significantly if the coil is wrapped around an iron core. This does not happen with nonmagnetic materials such as wood or aluminum or rubber. The enhancement of the electromagnet is caused by the magnetic properties of iron. The atoms of iron have magnetic properties as a consequence of thier electronic structure. (The cause of magnetism at the atomic level is a complex issue if described in detail and that complexity is beyond this explanation.) In a simplified picture one can say that at the atomic level the iron atoms act like little magnets. The magnetic characteristics of iron are such that an external magnetic field causes the rearrangement of the electronic structure of the iron at the atomic level and that creates a magnetization in the iron. That magnetizations has its own magnetic field just like a normal permanent magnet. The field created by the magnetization of the material adds to the external field and one gets a stronger magnetic field in and around the iron core.
What is 1 Celsius vs Fahrenheit?
1 degree Celsius is equal to 33.8 degrees Fahrenheit. To convert from Celsius to Fahrenheit, multiply by 1.8 and then add 32.
Why current in secondary coil in a step down transformer is higher?
A magnetic field is produced when there is a current in the primary coil of a transformer.^^^^basically magnectic fieldA changing current in the primary-winding of a transformer produces a changing magnetic flux in the core which results in a back-emf. in the primary winding through self induction, and a voltage in the secondary winding due to mutual induction.
Why do magnets attract or repel each other even when they are held apart?
Many things are magnetic, though in varying degrees, especially special rocks called magnets. Magma, lava underneath the surface of the earth, is highly magnetic, as lava often comes out in special areas on the surface forming a visible magnetic field. Humans are made from soil/dirt, and we have the same minerals in us as the earth does, and since the earth is magnetic, so are we, and scientists have proven that recently. They have found that we have ultramicroscopic minerals in our heads or in our brains that are magnetic, though they don't work the same way as the magnets in animals function. Animals navigate, especially during migration, due to the magnetic field of the earth, like a compass, and God designed them just for that. Also, you can make a makeshift compass by finding a small piece of light metal wire and rubbing it on your head to get static electricity. Now that it is magnetized, place it on a leaf in a pool of water, and it will align like a compass does! All thanks to Bear Grylls and his show of Man vs. Wild on Discovery channel!
What happens when a bar magnet is thrust into a coil?
When a bar magnet is thrust into a coil, the magnetic field of the magnet will "sweep" across the wire in the coil and induce a voltage in that coil. This is called induction, and if the coil is connected to an external circuit, there will be current flow in that circuit.
How can hysteresis loss in magnetic material may be reduced?
Hysteresis losses depend on the type of metal used to manufacture the magnetic circuit of a machine. Most magnetic circuits are made from silicon steel. Generally speaking, there's not much you can do to reduce hysteresis losses as that has already been factored in by the machine's designer.
What is the physical meaning of the slope of the magnetic force vs magnetic field graph?
The slope of the magnetic force vs. magnetic field graph represents the magnetic permeability of the material. A steeper slope indicates a higher magnetic permeability, meaning the material is more easily magnetized by an applied magnetic field. Conversely, a shallower slope indicates lower magnetic permeability.
What is a footcandle vs a footlambert?
A footcandle is a unit of measurement for illuminance on a surface, equal to one lumen per square foot. A footlambert, on the other hand, is a unit of luminance, measuring the brightness of a surface emitting or reflecting light in footlamberts.
How do you graph magnetic force vs distance?
To graph magnetic force vs distance, you need the equation of the magnetic force as a function of distance. This equation typically involves variables such as the magnetic field strength, the charge of the particle, and the velocity. You would then input different distance values into the equation to calculate the corresponding magnetic force values, which can be plotted on a graph with distance on the x-axis and magnetic force on the y-axis.
What is sizing measurement unit of tablets vs capsules?
Miligrams
The 380 vs the 9mm?
less power vs more power all else being equal.
Unit of measure in km vs feet?
1km = 3,280.84 feet
What unit does a barograph measure in?
A barograph is a device that monitors pressure. It plots pressure vs time. Units can be kPa vs hr.
How many kg is equals to 2.5 miles?
A kilogram is a unit of mass. A mile is a unit of distance. The two units are therefore incompatible.
How do you find resistance by a graph?
To find resistance from a graph of voltage vs. current, you can calculate the slope of the graph. Resistance is equal to the slope, so you can divide the voltage by the current to determine the resistance. The unit of resistance is ohms (Ω).
What is mA vs Amps?
mA stands for milliamps, which is a unit of electric current equal to one-thousandth of an ampere. Amps, on the other hand, refers to amperes, which is the base unit of electric current in the International System of Units. So, 1 mA is equal to 0.001 amps.
How many unit has the state vs radric Davis sold?
900 000
