A heating element is made by maintaining a potential difference of 75 .0 V across the length
Question:
A heating element is made by maintaining a potential difference of 75 .0 V across the length of a Ni chrome wire that has a 2.60 x 10-6 m2 cross section. Ni chrome has a resistivity of 5.00 x 10-7 Ω ∙ m.
(a) If the element dissipates 5000 W what is its length?
(b) If 100 V is used to obtain the same dissipation rate, what should the length be?
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Question Posted:
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