N to find the slope with uncertainty and assuming that the radius of the circular loop R=20 cm, calculate the value of B Earth,N with the error" and " Are both graphs linear? Describe the graph tanθ vs. Please answer the quastions " Are both graphs linear? Describe the graph tanθ vs.N. I to find the slope with uncertainty and calculate the value of B Earth, I with the error assuming R=20 cm.Ĭompute the average value B Earth = ( B Earth,N + B Earth, I)/2 with the error. Are both graphs linear? Describe the graph tanθ vs. I on the same graph using “Right Y-Axis” feature from Graph Options described above. To test the effect of the current through the loop on the strength of the loop’s magnetic field, measure the angle of deflection for currents of 0 to 3.5 A in 0.5 A increments keeping the number of the loops fixed at N = 5. N to find the slope with uncertainty and assuming that the radius of the circular loop R=20 cm, calculate the value of B Earth,N with the error. Are both graphs linear? Describe the graph tanθ vs.N.
N on the same graph using “Right Y-Axis” feature: on toolbar select Options > Graph Options > Axes Options > mark Right Y-Axis (be sure the preferences in LP for angles are set in degrees: select File > Settings for startup > Degrees). Double click on the y-column in the data set (at the top). Enter your data in Logger Pro and plot both θ vs. How do you show uncertainty in Logger Pro The next step is to tell Logger Pro that you want to use the error column as the uncertainty for the y-column. To test the effect of the number of turns N on the strength of the loop’s field B Loop, measure the angle of deflection (with respect to north) of the compass for 1 to 5 loops by keeping the current at constant value I = 3 A.
You can then drag the apparatus around as needed. To read the compass as accurately as possible use zooming with right-click on the apparatus and select “Zoom In” from the menu. You will use the oblique view this time and investigate these relationships to test equation (1). I both should yield a straight line through the origin (equation (4)). Therefore, you should find that the plots of tanθ vs. You will investigate the relationship between the strength of the magnetic field at the center of loop and: a) the number N of loops b) the current I through the loop.Įquation (3) shows that the field B Loop at the center of the loop is directly proportional to the tangent of θ (the Earth’s field remaining constant).
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