A nichrome wire has a length of 1.5 m and a cross-sectional area of 0.0080 mm 2
Question:
A nichrome wire has a length of 1.5 m and a cross-sectional area of 0.0080 mm2. The resistivity of nichrome is 1.30 × 10−8 Ω m.
a. Calculate the resistance of the wire.
b. Calculate the length of this wire that would be needed to make an element of an electric heater of resistance 30 Ω.
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Answered By
Shivam Mishra
i have done my Masters (M.Sc. Physics with electronics) from M.J.P. Rohilkhand University and i was gold medalist in the university level. I craked CSIR NET , SET , JEST exams in Physics. Now i am doing Ph.D. in condensed matter physics from SNBNCBS Kolkata.
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Related Book For 
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
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