Chapter 29, Problem 057 A student makes a short electromagnet by winding 430 turns of wire around a wooden cylinder of diameter d = 4.5 cm. The coil is connected to a battery producing a current of 3.1 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 7.0 µT (approximately one-tenth that of Earth's magnetic field)?

Chapter 29, Problem 057 A student makes a short electromagnet by winding 430 turns of wire around a wooden cylinder of diameter d = 4.5 cm. The coil is connected to a battery producing a current of 3.1 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 7.0 µT (approximately one-tenth that of Earth's magnetic field)?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter29: Magnetic Fields

Section: Chapter Questions

Problem 29.13OQ: A magnetic field exerts a torque on each of the current-carrying single loops of wire shown in...

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