Nichrome wire is used in some radiative heaters. (a) Find the resistance (in Ω) needed if the average power output is to be 1.20 kW utilizing 120 V AC. (b) What length (in m) of Nichrome wire, having a cross-sectional area of 5.05 mm2, is needed if the operating temperature is 500°C? (c) What power (in kW) will it draw when first switched on?

Nichrome wire is used in some radiative heaters. (a) Find the resistance (in Ω) needed if the average power output is to be 1.20 kW utilizing 120 V AC. (b) What length (in m) of Nichrome wire, having a cross-sectional area of 5.05 mm2, is needed if the operating temperature is 500°C? (c) What power (in kW) will it draw when first switched on?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 19P

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