Residual And Of Permanent Lifting Magnets

1. Move the compass slowly along a semicircular path above the bar magnet until you’ve put it on the opposite side of the bar magnet. Describe what happens to the compass needle.

When needle dropped the needle hit the water and sunk to the bottom of the beaker.

Examine the effects of physical forces, Magnetic forces, light energy, sound energy, and heat energy.

Resources: because the magnet connecting the joints of the railroad track would be small, it must be designed and labeled safe for young children who might swallow the piece. Since the magnet would be attached to a specific type of railroad track, it must be replacable in case children wear the magnet due to possible harsh usage. If there were to be any marks or damage to the magnet, it could be replaced with the purchase of another piece. This new magnet would then be able to be inserted between the joints of the railroad track and function the same as the original

I attempted the experiment several times using different materials and all have seemed to have no effect. I’ve instead decided to watch a Youtube video on someone doing a similar experiment. In the experiment he charged a plastic rod and placed it on a surface so that it would be able to freely spin. Once it was placed, he charged a similar rod and held it next to the free spinning rod. Because, the rods had like charges they repealed each other. He then grabbed another rod and gave it an opposite. Due to the charges being different they were attracted to each other. Next, he charged one rod and held it next to neutral objects. The neutral objects seemed to be attracted to the charged rod. In the experiment he charged the rods by rubbing them

Reasoning: In the beginning, the two opposite poles of the magnet were facing each other causing them to pull together. When the top magnet was turned over, two same poles were facing each other causing them to repel each other. since the bottom magnet could not move away because of the platform and the pole, the top magnet had to be the one to move. the top ring/ magnet could not move to the side because of the pole or down because of the magnetic force pushing against it, so it could only move upward. it did so until

paper, linear Halfback magnetized mover is applied to eddy current braking system for high speed. For

You can rephrase the question so they understand you are looking for the answer the bolts are less magnetic or the pull is less the higher the tower.

To accomplish this, we had gain a deeper understanding of how solenoids function, which would help us better recognize their applications in everyday life. For almost all of the project, we relied on information from our physics teacher, Dr. Danese, as well as online guides to help us better understand the electrical principles of solenoids. One online source we used to get a basic understanding of solenoids was provided by Northwestern University, and can be found here. Through our research, we learned that for a solenoid to generate force, there must be motion induced by an outside force. In the short description provided by the Northwestern site, we learned that a solenoid works by generating a magnetic field using a coiled wire, and increasing the numbers of turns on the coil increases the strength of the magnetic field (this is something we had to consider when coiling the wire around the cylinders). When current flows through a wire, a magnetic field is set up around the wire, and when the coil of the solenoid is energized with current, the core (i.e. a ferrous piston rod) moves to increase the flux linkage between the cores (the piston rod is attracted into the center of the magnetic field). The movable core is usually spring-loaded to allow the core to retract when the current is switched off. In a stationary position, this magnetic field will not generate any rotational force, and it will therefore only hold the

The physics behind bridges is more complex than first meets the eye. To assure that a bridge is well-supported many concepts must be understood and used in the correct manner.

The forces that are involve with the experiments are basically focused on the concurrent forces. The experiment also allows us to develop the condition of balancing or arranging the angles both sides on a force table. This laboratory experiment allows us to take the mathematical abstraction of a vector to make it tangible as possible. This experiment will look into two ways of

This can be explained by the magnetic principle that the same poles repel, different poles attract. As with the process, based on the force decomposition principle, the inverted U-shaped magnetically rail and magnet produce the repulsive electromagnetic force with an inclined angle, which can be decomposed into the guiding force along the lateral component and the suspension force along the vertical component. In addition, Liu, Long and Li(2015) illustrated that current adjustment in suspension magnet is adopted to keep suspension in a certain

The findings of Lu et al (2013) study suggest that it consists of primary coils, secondary coils and levitation magnet. As Lu et al (2013) state, the train is driven by the interaction between traveling magnetic field and the eddy currents, as well as thrust force. This can be demonstrated by the electricity magnetism. However, the limitations of this system can be apparently found. The intensity of the magnetic field is uneven, which is shown by the weakened near the entry end sector and the intensified near the exit end sector (Guo, Zhou and Lian, 2012). This is known as the "end effect". Lee, Kim and Lee (2006) points out that its efficiency is relatively low due to the end effect. This is further demonstrated by Guo, Zhou and Lian (2012), who claim that end effect will produce a downwards pressure on the thrust force, which decreases the power efficiency and affects the motor performance. Additionally, it tends to be evident that normal force can exert a negative impact on the levitation system due to end

Above figure shows the schematic of magneto rheological damper which is consist of cylinder, piston, piston rod and electrical winding. There are three types of the magneto rheological damper are,

The equation for the cross product is: . It can also be written as: The easiest way of finding the cross product is by setting the coordinates up in a 3x3 matrix. A matrix is a way of organizing data. Using i, j, and k as place holders and using the same two vectors from before, the matrix would look like this: