A student makes a short electromagnet by winding 480 turns of wire around a wooden cylinder of diameter d = 2.3 cm. The coil is connected to a battery producing a current of 3.5 A in the wire. (a) What is the magnitude of the magnetic dipole moment of this device? (b) At what axial distance z >> d will the magnetic field have the magnitude 5.3 µT (approximately one-tenth that of Earth's magnetic field)? (a) Number Units (b) Number Units

A student makes a short electromagnet by winding 480 turns of wire around a wooden cylinder of diameter d = 2.3 cm. The coil is connected to a battery producing a current of 3.5 A in the wire. (a) What is the magnitude of the magnetic dipole moment of this device? (b) At what axial distance z >> d will the magnetic field have the magnitude 5.3 µT (approximately one-tenth that of Earth's magnetic field)? (a) Number Units (b) Number Units

Physics for Scientists and Engineers

10th Edition

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter28: Magnetic Fields

Section: Chapter Questions

Problem 41AP

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