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Magnetic Susceptability
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Magnetic Susceptability
Abstract:
The change in weight induced by a magnetic field for three solutions of
complexes was recorded. The change in weight of a calibrating solution of 29.97%
(W/W) of NiCl2 was recorded to calculate the apparatus constant as 5.7538. cv
and cm for each solution was determined in order to calculate the number of
unpaired electrons for each paramagnetic complex. Fe(NH4)2(SO4)2€6(H20) had 4
unpaired electrons, KMnO4 had zero unpaired electrons, and K3[Fe(CN)6] had 1
unpaired electron. The apparent 1 unpaired electron in K3[Fe(CN)6] when there
should be five according to atomic orbital calculations arises from a strong
ligand field produced by CN-.
Introduction:
The magnetic susceptibility is a phenomena that arises when a magnetic
moment is induced in an object. This magnetic moment is induced by the presence
of an external magnetic field. This induced magnetic moment translates to a
change in the weight of the object when placed in the presence of an external
magnetic field. This induced moment may have two orientations: parallel to the
external magnetic field of or perpendicular to the external magnetic field. The
former is known as paramagnetism and the later is known as diamagnetism. The
physical effect of paramagnetism is an attraction to the source of magnetism
(increase in weight when measured by a Guoy balance) and the physical effect of
diamagnetism is a repulsion from the source of magnetic field (decrease in
weight when measured by a Guoy balance).
The observed magnetic moment is derived by the change in weight. This
observed magnetic moment arises from a combination of the orbital and spin
moments of the electrons in the sample with the spin component being the most
important source of the magnetic moment. This magnetic moment is caused by the
spinning of an electron around an axis acting like a tiny magnet. This spinning
of the ³magnet² results in the magnetic moment.
Paramagnetism results from the permanent magnetic moment of the atom.
These permanent magnetic moments arise from the presence of unpaired electrons.
These unpaired electrons result in unequal number of electrons in the two
possible spin states (+1/2. -1/2). When in the absence of an external magnetic
field, these spins tend to orient themselves randomly accordingly to statistics.
When they are placed in the presence of an external magnetic field, the moments
tend to align in directions anti parallel and parallel to the magnetic field.
According to statistics, more electrons will occupy the lower energy state then
the higher energy state. In the presence of a magnetic field, the lower energy
state is the state when the magnetic moments are aligned parallel to the
The Time Machine by H. G. Wells was an intriguing and exciting book about a Time Traveller and his journey’s through time. In this book, the Traveller explained to a group of men who were discussing the nature of time that time was the fourth dimension; just like the three dimensions of space: length, width and height. The Traveller argued that since time was a dimension, then it stood to reason that people should be able to move along the time continuum, into the past or the future. Most of the men do not seem to believe the Traveller or his theory, but agreed that they would like to travel in time, and talked about what they would do if they could. To illustrate his point, the Time Traveller went and got a model of his time machine from his laboratory to demonstrate and later returned to detail the places, things and people he had seen in his travels with his working Time Machine. Throughout the story, the Time Traveller faced setbacks and challenges, but the book outlined how he persevered and pointed to the future mankind faced.
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I have chosen to look at the effect of the weight applied, as it is a
Magnetism is very useful in our daily life. A magnetic field is a mathematical description of the magnetic influence of electric currents and magnetic materials. In addition, magnetic field is a region which a magnetic material experiences a force as the result of the presence of a magnet or a current carrying conductor. Current carrying conductors also known as wire. As we know there have north pole and south pole of a magnet. If same pole of magnet approaches each other, there will repel each other. In contrast, if different pole of magnet approaches each other, they will attract. These are same with the electric charge, if same charge it will repel, different charge it will attract. Although magnets and magnetism were known much earlier, the study of magnetic fields began in 1269 when French scholar Petrus Peregrinus de Maricourt mapped out the magnetic field on the surface of a spherical magnet using iron needles [search from Wikipedia]. Noting that the resulting field lines crossed at two points he named those points 'poles' in analogy to Earth's poles. Each magnet has its own magnetic field which experiences a force as the result of the presence of a magnet and magnetic field has made up of magnetic field lines. The properties of magnetic field lines is it begin at the north pole and end at the south pole. The north pole always flow out while south pole always flow in. The closer the magnetic field lines, the strength of magnetic field increases. Furthermore, these line cannot cross each other. Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets. Ferromagnetic materials...
The Effect of the Number of Coils on an Electromagnet On Its Strength Aim: - To establish whether a variation in the number of coils will affect an electromagnet's strength. Scientific Knowledge -. The concept of electromagnets is fairly simple. An iron nail wrapped in a series of coils of insulated wire and then connected to a battery, will enable the nail to pick up paper clips. This is because the current emitted from the battery to the coils magnetizes the nail to the surface.
I found out that the iron rod picked up many nails when turned on and
To the dismay of some and a necessity for others, scales can be found about everywhere in today’s society. It never fails; if you go to the doctor you will step on the scale. They are at the grocery store, in most bathrooms and even in some of our favorite stores. Were we might even pay a quarter to have a machine tell us our weight, out loud. We as a society are obsessed with our weight. You’re asked for your weight when renewing your driver’s license. Every time you get in an elevator and see the little sign saying do not exceed *** lbs, the quarter-pounder with cheese and milkshake you ate for lunch, is brought back to your memory. A scale receives more mental and physical abuse than any other appliance that has ever been invented. All this abuse stems from a lesson each of use were taught at a young age, which is that we should always tell the truth. Well let’s look a little deeper into the scale and see the physics involved in how two different types’ of scales weigh objects.
The hanger with appropriate amount of slotted mass was put on the tile. The sand is a sand. Use the balance to measure the total mass m. 4. What is the difference between a.. Sufficient length of string was attached to the hanger so that the free end wraps around the axle of the flywheel.
We Like It, We Love It, We Want Some More of It: The Allure of Time Travel
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Overall, Grey’s two arguments for no destination relied too much on the concept on presentism, which allowed space for rejections and solutions. The solutions and arguments against his paradox were all reasonable and sound proposals, which still allows the concept of time travelling to be possible.