0

Guest

Courses New

resistance of a wire is 10.5 W at 21degree celsius and at 147 degree celsius ut is 16.5 W . Find its temperature coefficient of resistance

resistance of a wire is 10.5 W at 21degree celsius and at 147 degree celsius ut is 16.5 W . Find its temperature coefficient of resistance

Grade:12

1 Answers

Eshan
askIITians Faculty 2095 Points
5 years ago
Dear student,

Resistance of wire after increasing the temperature becomes

R=R_0(1+\alpha\Delta T)
\implies 16.5=10.5(1+\alpha(126^{\circ}C))
\implies \alpha=4.5\times 10^{-3}/^{\circ}C

Think You Can Provide A Better Answer ?

Other Related Questions on Electric Current

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More