According to Amperes law, the magnetic field produced by a long, straight wire depends only on the
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According to Ampere’s law, the magnetic field produced by a long, straight wire depends only on the current enclosed by the Ampere’s law path (Eq. 20.16). Use this fact to compute the magnetic field inside a wire (Fig. P20.78). Assume the wire has a radius R = 1.0 mm and carries a current I = 2.5 A.
(a) Find the field a distance R/2 from the axis of the wire.
(b) What is the ratio of the field in part (a) to the field at the surface of the wire?
Transcribed Image Text:
Σ Β, ΔL (20.16) Holenclosed dosed path Figure P20.78
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For part a we take an Amperian loop inside the wire We then use Amperes law to calculate what the ma...View the full answer
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Related Book For
College Physics Reasoning and Relationships
ISBN: 978-0840058195
2nd edition
Authors: Nicholas Giordano
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