RevisedHomeworkAssignment(19-20)-03-24-08

# RevisedHomeworkAssignment(19-20)-03-24-08 - Lehigh...

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Figure 32-35 Lehigh University March 24, 2008 Physics 21, Spring 2008 Revised Home Work Assignment (19-20) Note: Solutions to the problems must be submitted on WileyPLUS (www.wileyplus.com). HW-19 due March 25 19-1. (HRW 32-24) Figure 32-35 a shows the current i that is produced in a wire of resistivity . The magnitude of the current versus time t is shown in Fig. 32-35 b. The vertical axis scale is set by , and the horizontal axis scale is set by . Point P is at radial distance 9.00 mm from the wire's center. Determine the magnitude of the magnetic field at point P due to the actual current i in the wire at (a) , (b) , and (c) . Next, assume that the electric field driving the current is confined to the wire. Then determine the magnitude of the magnetic field at point P due to the displacement current i d in the wire at (d) , (e) , and (f) . At point P at , what is the direction (into or out of the page) of (g) and (h) ? 19-2. (HRW 32-30) Assume the average value of the vertical component of Earth's magnetic field is (downward) for all of Arizona, which has an area of . What then are the (a) magnitude and (b) direction (inward or outward) of the net magnetic flux through the rest of Earth's surface (the entire

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## This homework help was uploaded on 03/30/2008 for the course PHYSIC 2 taught by Professor Kim during the Spring '08 term at Lehigh University .

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RevisedHomeworkAssignment(19-20)-03-24-08 - Lehigh...

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