Lab_7 - field patterns. Put iron filings onto the solenoid,...

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Introduction: Magnetic fields can be found when electric charges are in motion. It can be established by a permanent magnet or by moving charges. Objective: Experiment 1: In this experiment we observed the magnetic field patterns around a single magnet, around attractive and repulsive magnets, and around a solenoid. Experiment 2: The objective of this experiment is to calibrate a magnetic probe. Experiment 3: The objective of this experiment is to verify aspects of the equation that finds B C . Experiment 4: The objective of this experiment is to measure the components of the Earth's magnetic field. Methods and Apparatus: Experiment 1: Set up the magnets and make iron filing patterns as shown below. Observe the magnetic
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Unformatted text preview: field patterns. Put iron filings onto the solenoid, which is set to maximum current, and observe the patterns. Experiment 2: Set up the magnet with its north-pole pointing north. Connect the magnet to the power supply and make the current 0.75 amps. Calibrate and then repeat with the probe reversed. Experiment 3: Vary the current from -0.75 to 0.75 amps. Measure an graph the magnetic field versus current. Measure the magnetic field along the axis of the coil by moving the coil. Experiment 4: The coordinates of the lab are used to measure the three components of the Earth's magnetic field. The maximum-field vector is also measured by adjusting the probe until the largest reading is found....
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This note was uploaded on 04/08/2008 for the course PHYS 18b taught by Professor Wellenstein during the Spring '08 term at Brandeis.

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