Name____________________ Magnet Lab Problems: 1. How does a compass react when moved around a bar magnet? 2. How can you tell that a magnetic field is produced when electricity flows through a wire? 3. As you move further away from a magnet‚ what happens to the magnetic field strength? What is this similar to? Hypotheses: 1. _________________________________________________________________ 2. _________________________________________________________________ 3.
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conductor when it is moved through a magnetic field because the magnetic lines of force are applying a force on the free electrons in the conductor and causing them to move. This process of generating current in a conductor by placing the conductor in a changing magnetic field is called induction. This is called induction because there is no physical connection between the conductor and the magnet. The current is said to be induced in the conductor by the magnetic field. One requirement for this
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Finding the Charge to Mass Ratio of the Electron Via a Uniform Magnetic Field Generated by Helmholtz Coils Abstract The charge to mass ratio of the electron was found to be [pic] with a percent difference from the accepted value ([pic]) of 1.1% when adjusted for the Earth’s magnetic field. Without taking the Earth’s magnetic field into consideration‚ the charge to mass ratio was found to be [pic] with a percent difference of 5.3%.
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they can work through wood‚ but I hypothesize that they can’t work through both‚ because the magnetic field will be blocked too much. I designed five different set-ups to test how the magnets react in different ways using these materials. The results of the experiment proved four out of five parts of my hypothesis correct and proved one part of the hypothesis wrong. I learned from my project that the magnetic field can withstand objects in between magnets‚ but the more you put between the magnets‚ the
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a circuit with 12 volts and 5 ampers the restiance would be ________ ohms. A.) 2.4 16.) Soft iron used in the laminations of a coil or transformer has_____________. A.) a 17.) What happens when a coil of wire is passed through a magnetic field? A.) Magnetic field is cut by the wire and current will flow. 18.) What happens when electric current is passed through a coil or
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reaction. Much of the energy people depend on comes from chemical reactions. For example‚ energy can be obtained by burning fuel‚ metabolizing of food or discharging a batter. Materials and Methods: All work was done with coffee cup calorimeters‚ magnetic mixers‚ standard glassware and hardware. Weights of all materials were obtained using a Metler Toledo electronic scale per the manufacturer’s recommended procedure. Heating of reactants was done with a Thermolyne Type 1900 hot plate set to 500
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example there is no electric current. The electric field produces a force on other charges in its vicinity. Moving charges additionally produce a magnetic field. Electric potential is the capacity of an electric field to do work on an electric charge‚ typically measured in volts. Electromagnets are electrical currents generate magnetic fields‚ and changing magnetic fields generate electrical currents. Electrical phenomena have been studied since antiquity‚ though advances in the science were not made
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to measure the linear displacement of an object in a magnetic field is presented. The application is to be safely used for demonstration purposes in the Playpen laboratory. The system uses an array of five HMC1501 Magnetoresistive (MR) sensors to sense the position of a magnet attached to the moving object. The system also has the ability to monitor the ambient operating temperature and detect if it is exposed to an external disturbing magnetic field. Several other components such as the differential
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induction followed by resonant magnetic induction. Other methods under consideration include electromagnetic radiation in the form of microwaves or lasers. Energy transfer and efficiency The general principle is that if a given oscillating amount of energy (for example alternating current from a wall outlet) is placed into a primary coil which is capacitively loaded‚ the coil will ’ring’‚ and form an oscillating magnetic field. The energy will transfer back and forth between the magnetic field in the inductor
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NURSYAHIRA ABD HAMID ASSIGNMENT 1 Explain the concept and purpose of the geochemical‚ gravity‚ electromagnetic and magnetic surveys. 1. Concept and purpose of geochemistry Petroleum geochemistry has played an important role in many areas of exploration and production for fossil fuels. Many of the more recent developments can be seen to have developed in parallel with developments in analytical chemistry such as gas chromatography and gas chromatography−mass spectrometry. For the past two decades
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