A piece of Nichrome wire has a radius of 5.5 x 10-4 m. It is used in a laboratory to make a heater that dissipates 3.10×10² W of power when connected to a voltage source of 130 V. Ignoring the effect of temperature on resistance, estimate the necessary length of wire.

A piece of Nichrome wire has a radius of 5.5 x 10-4 m. It is used in a laboratory to make a heater that dissipates 3.10×10² W of power when connected to a voltage source of 130 V. Ignoring the effect of temperature on resistance, estimate the necessary length of wire.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 67PQ

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Question

A piece of Nichrome wire has a radius of 5.5 x 10-4 m.
It is used in a laboratory to make a heater that
dissipates 3.10×10² W of power when connected to
a voltage source of 130 V. Ignoring the effect of
temperature on resistance, estimate the necessary
length of wire.
Number i
Units

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