Magnetic tape

Place masking tape on the floor to create a pathway. 2. The children attempt to follow the path while balancing a beanbag on their head, then on their shoulder, elbow, and knee. 3. 3 they can use the. Same pathway for hopping with the beanbag on one knee or and the…

Model Scenario During recess on a sunny August afternoon, I noticed several of my students gathered together on the sidewalk. I walked over to see what the fascination was about, and found that one of the students had several types of magnets and other materials. The students appeared to be genuinely interested in discovering what would and would not attract to the different types of magnets. Once we returned to the classroom, several students made statements about characteristics and…

maintains the magnetic flux and produces a particular value of the flux density B at that point in a magnetic field. Therefore the flux density is the cause while the flux density (B) is the effect. The flux density can be assumed proportionally to the field intensity in a magnetic field which comes in three parts. First part is: Where U stands for the permeability of force (the measure of the degree to which the magnetic line of force can penetrate the material). The value of magnetic space…

Maxwell and Faraday- A Brief History of Electromagnetism The field of electromagnetism was established in 1819, twelve years before Maxwell was born. Hans Christian Oersted from Denmark was the first scientist who thought of the possibility that magnetism and electricity were related. He considered such a possibility because of the observations he made during an experiment. He Placed a wire above a compass and passed a current through the wire. He noticed that the needle of compass moved when…

the two circuits. The value of the coupling capacitance decreases with increasing separation of the circuits. Inductive coupling on the other hand is caused by mutual inductance between two conductors. When current flows through wires it produces a magnetic flux, which can induce a current in adjacent circuits. The geometry of the conductors as well as the separation between them determines the value of the mutual inductance, and hence the degree of the inductive coupling. Typically, capacitive…

provide movement for a vehicle. When an electric current, magnetic field or external force acts on a coil found inside of the motor, it will provide force to it, thus causing the coil to move, the coil rotates on a half turn basis otherwise the motor is forced to stop and will not move. The Motor Effect Motor effect refers to a current carrying wire in place of a magnetic field, the wire experiences a force, instead of the magnetic field producing it. You can measure the force by using the…

samples were also calculated which is known as squareness ratio. The materials having high value of coercivity show the hard magnetic materials and this behavior was observed in M-type hexa ferrites [36]. The measured values of coercivity ‘Hc’ for all the samples were observed in the range of (1.38-2.06) KOe. All the samples have high value of coercivity showing the hard magnetic behavior of M-type hexa…

The capabilities of a hysteresis motor can be judged based upon an evaluation of its behavior under two specific operating conditions: 1) starting conditions, and 2) steady state synchronous operating conditions at maximum torque. It is easier to conduct an experimental study on the behavior of a hysteresis motor under starting conditions than the second operating conditions. Furthermore, the starting behavior of hysteresis motors is of great importance from two perspectives: 1) usually the…

Electricity wasn’t invented it is already occurred in the nature. It was just discovered by Benjamin Franklin. His experiments (famous kite experiment) helped in building the connection between the electricity and lightning. In his experiment with kite included a kite with the key tie to the end of kite, which is connected to the Leyden jar. When the lighting struck the kite, the electric current travel down the string through the key and into the Leyden jar. We wonder that “what is there in…

rotating field referred to a rotor. According to Krishnan, (2010), DC motors operate through the interaction of an electric current with magnetic flux to generate a torque and rotational speed. D.C motors are of different types but they all operate…