Electromagnetism
After a study, it has been revealed that the circuit used contains so many built-in errors that cannot be helped. These factors are:
• Flux being lost on the corners of the magnet; and
• Resistance of the wire
Nevertheless, all that were predicted happened in the experiment. They seem to be accurate to a certain extent, as they all fit in their own patterns.
Evaluation
This experiment has worked well and has produced sufficient results that produce quite an interesting conclusion.
I did not have any unusual and anomalous results.
However, the methods used were not in such way that gives the most reliable results, as, the coils were not done in exactly the same way, so the length of the coils inside the magnetic field is not precisely the same in all cases. A mechanical device could be utilized instead of doing it by hand.
The results, however, are not strictly and totally accurate, as the circuit itself is not 100% efficient. The resistance inside the wires drains up some of the energy. Some flux of the magnetic field can also be lost through the magnet's shape, for instance -- bended wire around the nail at the end. From this, a high expectation cannot be made from such inefficient system because there is no solution to gain total efficiency.
Analysing Evidence & Drawing conclusions
To draw a conclusion from my graph, first of all I would divide it into
Three sections: Section A (the bottom), section B (the middle) and section C (the
top). This would now make it easier to describe.
The first section (A) looks like it does because for the amount of current
put in, only a few of the domains h...
... middle of paper ...
...t had almost reached the Magnetic Saturation point (i.e. it had almost attracted all that it could). The results also seemed to show a trend in the way they increased. Every time the voltage was increased by 1 volt, the amount picked up increased by roughly 2 grams.
Probably the reason that some of the results were anomalous was because the voltage used wasn't precisely accurate as the dials on the Power Packs can be misread slightly. Also, some of the pins may have become magnetised, or the nail may have become a weak permanent magnet. These reasons could also account for the spread of data in the other results.
My best fit line didn't pass through the origin, although it came very close. This is probably because the iron nail which was used as a core was slightly magnetised and therefore acted as a weak permanent magnet, before the electricity was turned on.
I do not think my results are very reliable as I did not have enough time to carry out many repeats, and so I cannot tell if any of my results are anomalous, meaning that the average of my results is not taking lots of repeats into account and may be seriously influenced by an unnoticed anomalous result.
2. Liang Chi Shen and Jin Au Kong, Applied Electromagnetism, 3rd ed. PWS Publishing Company, 1995.
During the late 1970's, the world of diagnostic imaging changed drastically due to the introduction of Magnetic Resonance Imaging, also known as MRI. For over 30 years, they have grown to become one of the most significant imaging modalities found in the hospitals and clinics ("EDUCATIONAL OBJECTIVES AND FACULTY INFORMATION"). During its ancient days, these machines were referred to as NMRI machines or, “Nuclear Magnetic Resonance Imaging.” The term “nuclear” comes from the fact that the machine has the capability of imaging an atom's nucleus. Eventually, the term was dropped and replaced with just MRI, because “nuclear” did not sit well with the public view ("EDUCATIONAL OBJECTIVES AND FACULTY INFORMATION"). Many people interpreted the machine to produce an excess amount of radiation in comparison to the traditional X-ray machine. What many of them were unaware of, MRI does not disperse a single ounce of ionizing radiation making it one of the safest diagnostic imaging machine available to this date. MRI machines actually use strong magnetic fields and radio waves to produce high quality images consisting of precise details that cannot be seen on CT (Computed Tomography) or X-ray. The MRI magnet is capable of fabricating large and stable magnetic fields making it the most important and biggest component of MRI. The magnet in an MRI machine is measured on a unit called Tesla. While regular magnets commonly use a unit called gauss (1 Tesla = 10,000 gauss). Compared to Earth's magnetic field (0.5 gauss), the magnet in MRI is about 0.5 to 3.0 tesla range meaning it is immensely strong. The powerful magnetic fields of the machine has the ability to pull on any iron-containing objects and may cause them to abruptly move with great for...
In the future, the experiment can be improved by making sure that changes above, if required, are done before the first trial of the first run starts. Another problem was that the 3-step pulley moved slightly every time a trial was conducted. This could be prevented for the future labs by have a 3-step pulley that more resistible to movement. With these improvements, future laboratory might get more accurate results.
After calculating all the values, we put it in a graph to compare the density, mass, and volume by using
muscle group at 80mM and 100mM seems to even lower than the observed membrane voltage
The purpose of my project is to test the strength of these amazing objects under various different temperatures and to see how they will react. I became interested while playing with some promotional magnets that were on the side of my refrigerator holding up the various pictures and notes.
After conducted a thorough test to the component, we conclude that there is an issue with the new strips, CAP action (CAP). Inaccuracy occurs because the microprocessor sometimes fails read the CAP strip test properly. However, it does not happen when the device is used with the older generation strip technology, such as Master Strip 2.
Temperature has a large effect on particles. Heat makes particles energized causing them to spread out and bounce around. Inversely the cold causes particles to clump together and become denser. These changes greatly F magnetic the state of substances and can also influence the strength of magnetic fields. This is because it can alter the flow of electrons through the magnet.
Perhaps the greatest endeavor that owes itself to induction is science. Its claim to be in the pursuit of truth, of empirical knowledge, is entirely dependent on the validity of inductive reasoning. As such, science has developed ways and means to guarantee the validity of its conclusions; this includes randomizing samples, choosing appropriately sized sample groups and the use of statistics to calculate whether something is merely possible or is probable. Each of these methods (and there may be more) needs to be examined.
...placing a soft metal core (commonly an iron alloy) inside a coil of wire through which electric current passes in order to produce a magnetic field. The strength and polarity of the magnetic field changes depending on the magnitude of the current flowing through the wire and the direction of the current flow. While there is sufficient flow of current, the core behaves like a magnet; however, as soon as the current stops, the magnetic properties also disappear. Modern devices that make use of electromagnets are the televisions, telephones, computers and electric motors.
It is the reason for the great technological movement of the 21st century. Its applications are used on a day-to-day basis. What is this form of energy? It is electricity. Electricity is defined as a form of energy from the existence of charged particles. The charged particles are either positive or negative (protons or electrons). Moreover, through the same principal, the phenomenon of magnetism is also applied on a day-to-day basis. Magnetism is defined as either an attractive or repulsive force between objects due to an electric charge. To thoroughly understand the strength of electricity and magnets, it is vital to first be cognizant of where and when they were discovered.
Proved Morteza et al.(2012) in their study the deadly impact for the lower intensities of the magnetic field on bacteria Bacillus Furthermore, showed study Yana et al.( 2013) the efficient use of the magnetic field to reduce the concentrations of phosphate from sewage at rates
found the results of this test to be fascinating as these results without a fault explained the