Laboratory 34. The RC time Constant Heungmin Park University Physics 2 October 31, 2011 Laboratory 33 Objective: To lay protrude the oversight of the B case ring a dogged swell outfit employ a compass. The main aim is support B is invers the perpendicular outstrip from the wire. Rest of implement: world-beater supply, ammeter, sine ramble generator, digital voltmeter, compass, long true(p) wire apparatus, and a 100 mHenry inductor coil. Theory: When a long straight wire has a current I and the lines of magnetic trigger B atomic number 18 concentric circles surrounding the wire. Also, the B playing area is tangent to the circle as headn in Fig. 1. Â [pic] The currents focal point is perpendicular to the directed out and plane of the pages. Those directions are by definition the direction that corroboratory charge would flow. A formula for the magnitude of the B house is given by [pic](1) As note in Figure 1 that the aloofness o f the B vector are drawn shorter for the larger circles to show that the B field decreases with distance from the wire as predicted by equation (1). When the current in the long straight wire is unbroken in time then the B field created by that current will be constant in time. And we will use a compass to investigate the direction of the B field in this manner. Procedure: social manipulation 1.
Determination of Magnitude of the B Field as a Function of Distance from the Wire 1. The circuit was made by students with using the long wire apparatus and the sine wave generator. 2. The induc tor coil was connected to the oscilloscope a! nd the coil was shown in trio various positions with the bloc of the coil at different distance r1, r2 and r3 from the wire. 3. The coil was chosen to be 1 cm and downcast cross-section. With the inductor about 3 cm from the wire, with its axis positioned. 4. The emf induced in the inductor coil, which as cognize as a function of r, was measured by students. 5. The selective information from r =...If you want to get a full essay, rove it on our website:
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