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Physics 9 Online
OpenStudy (anonymous):

A ribbon of nichrome (resistivity = 1.00 × 10-6 Ω·m) with a rectangular cross sectional area of (0.25 mm × 1.00 mm) will be used as a heating element in a toaster. How long should this ribbon be, if the total resistance is intended to be 1.5 Ω? 1.24 cm 2.79 cm 37.5 cm 12.4 cm 21.9 cm

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