A student makes a short electromagnet by winding 390 turns of wire around a wooden cylinder of diameter d = 4.1 cm. The coil is connected to a battery producing a current of 4.1 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 4.8 µT (approximately one-tenth that of Earth's magnetic field)?
A student makes a short electromagnet by winding 390 turns of wire around a wooden cylinder of diameter d = 4.1 cm. The coil is connected to a battery producing a current of 4.1 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 4.8 µT (approximately one-tenth that of Earth's magnetic field)?
Chapter12: Sources Of Magnetic Fields
Section: Chapter Questions
Problem 25P: A long, straight, horizontal wire carries a left-to-right current of 20 A. If the wire is placed in...
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![A student makes a short electromagnet by winding 390 turns of wire around a wooden cylinder of diameter d = 4.1 cm. The coil is
connected to a battery producing a current of 4.1A in the wire. (a) What is the magnitude of the magnetic dipole moment of this
device? (b) At what axial distance z>> dwill the magnetic field have the magnitude 4.8 µT (approximately one-tenth that of Earth's
magnetic field)?
(a) Number
i
Units
(b) Number
i
Units](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F42eb3f21-115e-47f2-b59c-753292f0c3d6%2Fcc37a1b5-306e-448b-a138-cb61977ec902%2Fd22e22k_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A student makes a short electromagnet by winding 390 turns of wire around a wooden cylinder of diameter d = 4.1 cm. The coil is
connected to a battery producing a current of 4.1A in the wire. (a) What is the magnitude of the magnetic dipole moment of this
device? (b) At what axial distance z>> dwill the magnetic field have the magnitude 4.8 µT (approximately one-tenth that of Earth's
magnetic field)?
(a) Number
i
Units
(b) Number
i
Units
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