A student makes a short electromagnet by winding 420 turns of wire around a wooden cylinder of diameter d = 4.8 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 6.2 µT (approximately one-tenth that of Earth's magnetic field)? (a) Number Units (b) Number i Units
A student makes a short electromagnet by winding 420 turns of wire around a wooden cylinder of diameter d = 4.8 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 6.2 µT (approximately one-tenth that of Earth's magnetic field)? (a) Number Units (b) Number i Units
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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