Question #113758
The temperature coefficient of resistance for carbon at 0oC is -0.0048/oC. What is the significance of the minus sign? A carbon resistor has a resistance of 500Ω.Determine its resistance at 50oC
1
Expert's answer
2020-05-07T10:01:12-0400

Minus sign shows that on increasing the temperature the resistance value will decrease or vice versa


R=Ro(1+α(T−To)R=R_o(1+\alpha(T-T_o)

R=500(1+(−0.0048(50−0))=500(1−0.0048×50)=500×0.76=380ohmR=500(1+(-0.0048(50-0))=500(1-0.0048\times50)=500\times0.76=380 ohm


Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Place free inquiry
Calculate the price
Learn more about our help with Assignments: Electric Circuits

Comments

No comments. Be the first!
Our fields of expertise
Submit Your Assignment. We Can Do It.
LATEST TUTORIALS
APPROVED BY CLIENTS
Finding a professional expert in "partial differential equations" in the advanced level is difficult. You can find this expert in "Assignmentexpert.com" with confidence. Exceptional experts! I appreciate your help. God bless you!
Canada #340153 on Dec 2023