Ampere's Law Four current carrying wires pierce though the path (with displacement vectors drawn) in the illustration. Suppose fë B. ds = 0. If current I₁ = 3.9A, what is current I (in Amps)? Figure [13.7] that

Instructions1. In the three cases, use the average of the two angles ( = (+) + ()
=2), the averageof the two currents ( I = I(+) + I()
=2), and Eqs. (1) and (2), and calculate coilÖeld and the earth ís horizontal component of magnetic Öeld, B(earth) H [ Tesla ].2. Based on the three previous calculations, what is your experimental determination ofthe horizontal component of the earthís magnetic Öeld, B(earth) H [ Gauss ]?3. Take the accepted value of the earthís horizontal component of magnetic Öeld in southFlorida to be 0:25 Gauss and calculate the percent error in your answer.

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Suppose the polarity of E2 in the figure is reversed. Calculate the magnitude of the current in this case. Show all steps.

Wire with current I yA Electron A long straight wire carries a current of 43.6 A. An electron, traveling at 1.00 x 10' m/s, is 7.70 cm from the wire. What force acts on the electron if the electron's velocity is directed toward the wire? If the direction of force is perpendicular to the current, enter a negative value. N