A student makes a short electromagnet by winding 200 turns of wire around a wooden cylinder of diameter d = 6.0 cm. The coil is connected to a battery producing a current of 3.0 A in the wire. (a) What is the magnitude of the magnetic dipole moment of this device?     _________A · m2(b) At what axial distance z ≫ d will the magnetic field of this dipole have the magnitude 5.0 μT (approximately one-tenth that of Earth's magnetic field)?    _______________cm (please show units. It really helps me out)

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A student makes a short electromagnet by winding 200 turns of wire around a wooden cylinder of diameter d = 6.0 cm. The coil is connected to a battery producing a current of 3.0 A in the wire.

(a) What is the magnitude of the magnetic dipole moment of this device?
     _________A · m2

(b) At what axial distance z ≫ d will the magnetic field of this dipole have the magnitude 5.0 μT (approximately one-tenth that of Earth's magnetic field)?
    _______________cm

(please show units. It really helps me out)

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