A Tungsten filament for a light bulb is found to have a resistance of 0.25 Ω when
measured at a temperature of 20◦ C. When the light bulb has been on for a substantial
period of time, the filament has heated up and the resistance is found to be 3.50 Ω.
What is the temperature of the heated filament? Tungsten’s temperature coefficient
of resistivity is 4.5 × 10−3 per degree C, and do not consider thermal expansion of the
filament.
The answer to the question is available in the PDF file https://www.assignmentexpert.com/https://www.assignmentexpert.com/homework-answers/physics-answer-65353.pdf
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
Comments
Leave a comment