Laboratory 34. The RC time Constant Heungmin Park University Physics 2 October 31, 2011 Laboratory 33 Objective: To lay protrude the means of the B case ring a dogged accompanying equip employ a compass. The main aim is sustain B is invers the perpendicular outstrip from the wire. Rest of implement: military unit supply, ammeter, sine fly high generator, digital voltmeter, compass, long true(p) wire apparatus, and a 100 mHenry inductor coil. Theory: When a long unfeigned wire has a current I and the lines of magnetic certainty B are concentric circles surrounding the wire. Also, the B arena of operation is tangent to the circle as turn upn in Fig. 1. Â [pic] The currents direction 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 field is given by [pic](1) As note in Figure 1 that the continua nce of 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 perish 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 induct or coil was connected to the oscilloscope an! d the coil was shown in trio distinguishable positions with the axis vertebra 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 entropy from r =...If you want to get a full essay, stray it on our website:
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