A student makes a short electromagnet by winding 450 turns of wire around a wooden cylinder of diameter d = 4.3 cm. The coil is connected to a battery producing a current of 5.3 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 4.7 µT (approximately one-tenth that of Earth's magnetic field)? (a) Number 3.46e+0 Units A-m^2 (b) Number 1.47e+1 Units This answer has no units

A student makes a short electromagnet by winding 450 turns of wire around a wooden cylinder of diameter d = 4.3 cm. The coil is connected to a battery producing a current of 5.3 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 4.7 µT (approximately one-tenth that of Earth's magnetic field)? (a) Number 3.46e+0 Units A-m^2 (b) Number 1.47e+1 Units This answer has no units

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 64P: A solenoid with an iron core is 25 cm long and is wrapped with 100 turns of wire. When the current...

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