The wire in a heating element of an electric stove burner has a 0.75-m effective length and

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The wire in a heating element of an electric stove burner has a 0.75-m effective length and a 2.0 x 10-6 ∙ m2 cross-sectional area.
(a) If the wire is made of iron and operates at 380oC, what is its operating resistance?
(b) What is its resistance when the stove is “off”?
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College Physics

ISBN: 978-0321601834

7th edition

Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou

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